Indoor stair stringer home depot

Indoor stair stringer home depot DEFAULT

Stairway Lighting requirements (C) Carson Dunlop AssociatesStair Stringer Specifications

InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.


Building stair stringers:

How should stair support stringers be constructed and connected, what alternative materials can be used & what are the stair stringer building code specifications for strength & load bearing requirements.

Codes & strength requirements for stair support systems; how to build safe stair stringers that don't sag, squeak, collapse, or lose their treads.

This article describes the construction and building code specifications for the support of residential stairways: how strong should the stringers be, and what are the load bearing requirements of stairs and their supporting stringer beams.

We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need.

Stair Stringer Codes & Specifications: required strength for stair supports

support added to exterior deck stairs (C) Daniel FriedmanModern building codes do not provide explicit design load-specifications for stair stringers and treads and their connections, leaving those to design professionals such as architects and engineers, but the model codes do require the stairs to support a concentrated live load of at least 300 pounds (e.g. on the stairway or on a stair tread) or to support a loading of 100 pounds per square foot, or for residential buildings 40 psf for 1 and two-family dwellings.

Photo: we see the addition of an intermediate support below a long stair stringer. This stair may be improper in another regard: the total rise or number of steps without an intermediate landing may exceed local building codes.

At PLATFORMS & LANDINGS, ENTRY & STAIR we note that the maximum height between floors or landings is limited to 12 ft.

Example stair code specifications include the 2018 International Building Code (IBC) section 1607.1 (30) and the ASCE 7-16 Table 4.3-1, as well as stair deflection (bending or sagging) limits given in the International Building Code (BC Table 1604.2) and specified as the widel-accepted L/360 (live load) and L/240 (total load).

If you're not familiar with this deflection limit, L/360 means that the allowable deflection (or "sag") is limited to the length of the span in inches / 360 for live loads. For example the deflection allowed in a 12 foot span would be (12 ft. x 12"/ft) / 360 or (144 / 360) or 0.4 ". More details are given below on this page and also

at CODES for STAIRS & RAILINGS

Stair Tread Support Choices & Relation to Stair Stringer Notching

  1. Stair treads can be placed directly on top of the horizontal surface of cutouts in the notched stair stringer. 

    This approach is very secure provided that the stringer depth is great enough and the cutout depth shallow enough that the remaining stringer material is strong enough to carry the weight of the stairway and its users (1-? arrow in sketch at left).

    [Click to enlarge any image]

    Of course if the stairway is supported by securing the stringer to walls on both sides, this cutout depth weakness problem is mitigated or eliminated.

    More about too-deep stringer notching is in our stair stringer defects article

    at DECK STAIR STRINGER NOTCHING TOO DEEP.
  2. Stair treads can be placed between the stringers and supported by cleats or supported by grooves routed inside the un-notched stringer.

    If the stair treads are set into grooves routed into the stringer, in a 2x stringer the groove depth should be 1/2 the thickness of the stringer (typically 3/4") and additional support by cleats or by gluing and end-screwing through the stringer sides into the treads is good practice.
  3. Stair treads butted against an un-grooved stringer inner face and then nailed or screwed through the stringer into the stair tread.

    Watch out: We do not recommend this stair tread approach as too often we find the treads break away from the stringer causing catastrophic stair tread collapse and perhaps serious injuries.

    If you encounter a stair built this way you should add glued & screwed cleats to support the treads.

    Also see UNSAFE STAIR TREAD TO STRINGER CONNECTIONS

Watch out: see stair stringer and stair tread cleat or other stair tread support defects & hazards detailed

at STAIR STRINGER DEFECTS

Research, Tables, Design Guides for Stair Stringers & Stair Construction

Roseburg FP RigidLam stair stringer span table for ONE example out of many provided by the company - cited & discussed at InspectApedia.com

Above: an example LVL stair stringer guide provided for RigidLam LVL courtesy of Roseburg FP cited just below. Note: this is just one example table of allowable spans for RigidLam LVL stringers out of a larger range of LVL dimensions and tables provided by Roseburg FP.

  • BUILDING CODES for STAIRS - Model & actual building codes for stairs, railings, guardrails, landings, risers, treads, and steps
  • Also see additional citations at REFERENCES at the end of this page
  • Anderson, L.O., T.B. Heebink, A.E. Oviatt, CONSTRUCTION GUIDES for EXPOSED WOOD DECKS [PDF] (1972) USDA Forest Service, retrieved 2020/11/05 original source: https://naldc.nal.usda.gov/download/CAT10309354/PDF
  • Australia Forest and Wood Products, STAIRS, BALUSTRADES & HANDRAILS CLASS 1 BUILDINGS - CONSTRUCTION [PDF] (2013) Colin MacKenzie Timber Queensland Limited, Wood Solutions, Australia, Website: woodsolutions.com.au
  • Australia, TAM, CONSTRUCT TIMBER EXTERNAL STAIRS [PDF] CPCCCA3016A (student materials) TAM, Training & Assessment Mentor, construction industry education

    Excerpt: This unit of competency specifies the outcomes required to construct and install timber external stairs that may involve one or more flights, to provide access into a structure. It includes timber treads and stringers
  • Boise Cascade ENGINEERED WOOD: EAST 1½" VERSA-LAM® LVL 1.8E 2650STAIR STRINGER GUIDE [PDF] (2020) Boise Cascade, Company Website: www.BCewp.com
  • Boise Cascade ENGINEERED WOOD: WEST 15⁄16" VERSA-LAM® LVL 1.5E 1800STAIR STRINGER GUIDE [PDF] (2020) Boise Cascade, Company Website: www.BCewp.com
  • Cairns Hardware Co., BUILDING TIMBER STEPS [PDF] Cairns Hardware, 154 Scott St., Cairns QLD 4870, Australia, Email: (sales & operations) [email protected], Website: www.cairnshardware.com.au

    Excerpt: There is often a need for steps as an access to a deck or for use between stairways can be much the same as open detailing which avoids trapped moisture or exposed end grain of the members should be used. A basic open stairway consists of the two stair stringers and the treads. The supporting members of a stair are these stringers which are used in pairs spaced at up to about I metre apart. The overall height of steps from ground line to deck or landing should not exceed 1 metre.
  • Christopher R. Fournier, P.E., "Wood Framed Stair Stringer Design & Construction", Structure Magazine, March 2013, p. 45-46. Mr. Fournier is a structural engineer in North Conway NH. His article is available online, retrieved 4/19/14 original source: www.structuremag.org/Archives/2013-3/C-StrucDesign-Fournier-March13.pdf
  • Aghayere, Abi, and Jason Vigil. "Introduction: Wood Properties, Species, and Grades." Structural Wood Design: A Practice-Oriented Approach Using the ASD Method: 1-24.
  • Aghayere, Abi, and Jason Vigil. "Frontmatter." Structural Wood Design: A Practice-Oriented Approach Using the ASD Method (2008): i-xii. [See Chapter 27, "Combined Dead and Live Loads on Stair Stringers"]
  • Berge, Greg Vanden. Simplified Stair Building. Greg Vanden Berge, 2012.
  • De Tennis, Danielle. "Strength Testing and Analysis of a Stair Header Connection." PhD diss., Milwaukee School of Engineering, 2010.
  • Higgins, Christopher. "Prefabricated steel stair performance under combined seismic and gravity loads." Journal of structural engineering 135, no. 2 (2009): 122-129.
  • Kourakis, Ioannis, and Shawn Li. "Design of a Glass Stair." In Structures Congress 2010, pp. 2650-2659. ASCE, 2010.
  • Lam, Frank, George Lee, Huijun Yan, Jianzhong Gu, and Ata A. Saravi. "Structural performance of wood-based stair stringers." Forest products journal 54, no. 4 (2004).
  • Louisana Pacific, LP SOLIDSTART LSL STAIR STRINGER US TECHNICAL GUIDE [PDF] Engineered wood stair stringers, LP, Louisana Pacific corporation, retrieved 2020/11/05 original source: https://lpcorp.com/resources/product-literature/technical-guides/lp-solidstart-lsl-and-lvl-stair-stringer-technical-guide-english
  • Roseburg FP, ENGINEERED WOOD PRODUCTS GUIDE [PDF] (2017) see pp. 27-31, from which the table above is excerped. Roseburg, Forest Products Co., 3660 Gateway Street, Springfield, OR 97477 USA, Tel-800-347-7260 Website: www.Roseburg.com Email: [email protected]
  • STAIRWAYS & LADDERS, A GUIDE to OSHA RULES, OSHA, U.S. Department of Labor, 3124-12R 2003 - Web Search 05/28/2010 original source: http://www.osha.gov/Publications/osha3124.pdf. OSHA regulations govern standards in the construction industry and in the workforce

    Quoting from OSHA whose focus is on workplace safety and so excludes discussion of falls and stair-falls in private homes:

    OSHA estimates that there are 24,882 injuries and as many as 36 fatalities per year due to falls from stairways and ladders used in construction. Nearly half of these injuries are serious enough to require time off the job--11,570 lost workday injuries and 13,312 non-lost workday injuries occur annually due to falls from stairways and ladders used in construction.

    These data demonstrate that work on and around ladders and stairways is hazardous. More importantly, they show that compliance with OSHA's requirements for the safe use of ladders and stairways could have prevented many of these injuries.
    -

  • [43] International Building Code, Stairway Provisions, Section 1009: Stairways and Handrails, retrieved 8/29/12, original source: http://www.amezz.com/ibc-stairs-code.htm [copy on file as IBC Stairs Code.pdf]
  • [44] Model Building Code, Chapter 10, Means of Egress, retrieved 8/29/12, original source: http://www2.iccsafe.org/states/newjersey/NJ_Building/PDFs/NJ_Bldg_Chapter10.pdf, [copy on file as NJ_Bldg_Chapter10.pdf] adopted, for example by New Jersey. International Code Council, 500 New Jersey Avenue, NW, 6th Floor, Washington, DC 20001, Tel: 800-786-4452
  • Weyerhaeuser, TrusJoist STAIR STRINGERS AND TREADS SPECIFIERS GUIDE [PDF] (2019) Weyerhaeuser Corp., 220 Occidental Ave. South, Seattle, WA 98104 USA Tel: 800-525-5440
  • Weyerhaeuser, TrusJoist STAIR STRINGER TABLES [PDF] (2020)Stair Stringer Tables for Trus Joist®1 ½" 1.3E TimberStrand®LSL, 1 ½" 1.5E TimberStrand®LSL, and 1 ¾" 1.55E TimberStrand®LSL, Weyerhaeuser Corp., retrieved 2020/11/05 original source: https://www.weyerhaeuser.com/woodproducts/document-library/document_library_detail/tb-703/

 

Reader Comments & Q&A

Steve I'd like to see a photo, but yes it's quite possible that someone felt that the stairs were not adequately supported by the stringers so added a post at mid-span. I'd expect the post to be connected to a horizontal beam that runs the width of a stair tread and to be connected to the stringers on either side.

I've seen this addition when stairs were bouncy or creaky too.

I cut open the wall under the stairs and found three studs nailed together that seem to be a support is this load bearing for about 12 steps

Anon

I don't understand the question; a misty vague answer might be sure - as long as the stringer you've made is structurally adequate.

Can u use a two piece stringer

LC

That sort of detail is not discussed in building codes.

However as long as the stair is secure and sound and the risers of the same height it should be fine.

If a stair stringer adjustment makes one of the steps shorter than the others then that'd be a trip hazard and would be improper.

If I understand your question we cut off 5/8" of wood and add 5/8" of PVC - so the step rise should be unchanged.

Is it to code to cut 5/8" off the bottom of stair stringers and affix a 5/8" thick piece of pvc to keep the wood up off the wet pavement? (Seattle area where it rains all the time) If I do this, my bottom stringer rise, before treads are installed, will decrease to 5 1/8" - 5/8" = 4 1/2". I'm talking about the wood itself becoming 4 1/2" on the bottom rise.

I'm building deck stairs with 12 treads, 2 notched plus 2 closed stringers. The stringers are already cut and are 12' long.

My reason to want the pvc on the bottom is to prevent wood rot of acq pressure treated lumber on a concrete slab in constant rain

Thank you.

I am making a monorail stringer out of universal beam. What is the formula to determine the correct size beam

My stairs (indoor) rest on the stringers. but the stringer cutouts are not at 90 degrees. In other words the risers are not perpendicular to the treads and pitch forward as they meet the tread above. Are their specifications or requirements for the maximum angles the steps can vary from 90 degrees?

Reader Question: sagging stairway: is there a code I can check on stair stringer construction?

Unsafe exterior stair stringer and riser height (C) Daniel FriedmanRich O said:

So, used improper terminology below, believe I should have used "stringer" versus "riser", the entire 12' stringer (wood construction) is now deflecting as if a support has failed. Thanks again, Rich

My house in Westminster CO is just out of warranty and one of the staircase risers has started to visibly deflect (and squeak) when traversing the stairs. I've requested the builder take a look, in the meanwhile, is there a specific code I can refer to in order to ascertain if the stair was properly constructed? Thanks, Rich

Reply: Model building code specifications for stair support stringers

Yes a riser is the vertical board enclosing the space between horizontal walking surfaces, i.e. treads. The stringer is the support for the stairs - it functions as an angled beam and must support both the dead loads and live loads of the building stairway.

Let's be clear first that a significant concern with the strength of supporting stair stringers (effectively angle beams) arise because a typical 2x12" (or rarely 2x14") stringer is in some stair designed notched to carry the stair treads on the horizontal notch face and stair risers on the vertical notch face.

My deck stair photo above shows very deep notching in a stair stringer (as well as multiple other safety hazards and code violations). Less than 2" of lumber was left in this stair stringer 2x after the builder cut his tread notches.

Notched stair stringers are widely used and are acceptable if sufficient supporting strength is provided. I prefer to avoid deflection or even collapse problems by using a solid stringer, connecting stair treads to cleats.

It's also worth emphasizing that in all cases the connections are as important as the beam strength. The connections of stair stringer to the risen-to platform, of treads to stringer, and of railings and posts are critical for safe stair construction.

Those worries out of the way for a moment and assuming your question pertains to a notched stair stringer system that is sagging or deflecting, if a stair stringer is deflecting, depending on the amount, it may be damaged or may have been inadequate to begin with.

For safety, investigate and determine what repair or additional support is needed.

A common construction or repair method for strengthening notched stair stringers is the addition of either full depth (not notched) dimensional lumber (e.g. a 2x12) or engineered lumber fastened to the outside of the notched stringer and running its full length, along with proper structural connectors at the stair top and bottom.

Because stringer notch depth for designs that actually notch the 2x12 or 2x14 framing lumber typically used can vary depending on stair design, codes do not specify explicit lumber dimensions. Instead codes typically specify the strength required of the ending design. One may need to increase the number of stringers accordingly.

For example the IRC specifies that stairs shall be designed to withstand a live load of 40 pounds - as with a building floor.

Individual stair treads shall be designed for the uniformly distributed live load or a 300–pound concentrated load acting over an area of 4 square inches, whichever produces the greater stresses.

Before an inspection has been performed we don't know if the deflection of the stair stringer to which you refer is due to damage (rot for example) or a design inadequacy. But the initial focus must be on the detection of and response to any *immediate safety hazard* such as conditions that could permit a stair collapse, fall, or injury.

Here is a model building code citation for stair stringer support requirements for residential stairs
using the 2003 IRC.

R301.5 Live Load [Specifications for Stair Construction]

Minimum required live load for Stairs 40 psf. c.

c. Individual stair treads shall be designed for the uniformly distributed live load or a 300-pound concentrated load acting over an area of 4 square inches, whichever produces the greater stresses.

301.1.1 Alternative provisions [for supporting stair stringers]

As an alternative to the requirements in Section R301.1 the following standards are permitted subject to the limitations of this code and the limitations therein. Where engineered design is used in conjunction with these standards the design shall comply with the International Building Code.

1. American Forest and Paper Association (AF&PA) Wood Frame Construction Manual (WFCM).

2. American Iron and Steel Institute (AISI), Standard for Cold-Formed Steel Framing—Prescriptive Method for One- and Two-family Dwellings (COFS/PM).

Dwayne

Please forgive me but as you phrase the question I don't know how to answer it.

The number of stair stringers that you need because on the dimensions of the lumber used, the width of the stair, and whether or not there can be intermediate support beneath the Stringer.

How many stair stringers do I need on a deck that is 10ft long

Simpson Strong-Tie LCSZ stair stringer connector - adjustable - cited & discussed at InspectApedia.comScott

Simpson and others make framing connectors specifically designed to give a safe, proper structural connection between the stair stringer and the deck (often to a rim joist provided the rim joist itself is adequately secured).

Do not use deck board screw, use structural screws sold specifically sized to work with structural connectors.

Shown below, quoting from Simpson

The LSCZ adjustable stair-stringer connector offers a versatile, concealed connection between the stair stringer and the carrying header or rim joist while replacing costly framing. Field slopeable to all common stair stringer pitches, the LSCZ connector is suitable for either solid or notched stringers.

The Strong-Tie LSCZ adjustable stringer connector features a G185 ZMAX galvanized finish for added corrosion resistance and requires the use of hot-dip galvanized fasteners which meet the specifications of ASTM A153.


LCSZ Adjustable Stair Stringer Connector Features

Replaces additional framing and toe-nailing

Suitable for most installations on 2x10 or 2x12 header/rim joist

May be installed flush with the top of the carrying member or lower on the face Interchangeable for left or right applications

LSCSS features a Stainless Steel coating for additional corrosion protection. Suitable for exterior applications
.

LCSZ Adjustable Stair Stringer Connector Installation Instructions

Use all specified fasteners.

Before fastening, position the stair stringer with the LSC on the carrying member to verify where the bend should be located.

Tabs on the LSC must be positioned to the inside of the stairs.

The fastener that is installed into the bottom edge of the stringer must go into the second-to-last hole.

When installed on 1 5/16" LVL or a 1 1/4" LSL stringer, additional items that will not affect the structural performance of the LSC, but should be considered, include the following:

LSC stringer flange will protrude 1/4" from face of stringer. As such, it is recommended the LSC be installed with the tabs positioned to the outside of the stringer.

1-1/2" fasteners installed into 1-1/4" LSL stringer will protrude from the opposite side.



NOTE: The correct fasteners installed in the correct position must be used to achieve published load values

Can I use a galvanized stringer support to attach stairs to my deck. They would be deck screwed into a 2x10 joist. The stringer is a 6 step

Steve I'd like to see a photo, but yes it's quite possible that someone felt that the stairs were not adequately supported by the stringers so added a post at mid-span. I'd expect the post to be connected to a horizontal beam that runs the width of a stair tread and to be connected to the stringers on either side.

I've seen this addition when stairs were bouncy or creaky too.

I cut open the wall under the stairs and found three studs nailed together that seem to be a support is this load bearing for about 12 steps

Anon

I don't understand the question; a misty vague answer might be sure - as long as the stringer you've made is structurally adequate.

Can u use a two piece stringer

LC

That sort of detail is not discussed in building codes.

However as long as the stair is secure and sound and the risers of the same height it should be fine.

If a stair stringer adjustment makes one of the steps shorter than the others then that'd be a trip hazard and would be improper.

If I understand your question we cut off 5/8" of wood and add 5/8" of PVC - so the step rise should be unchanged.

Is it to code to cut 5/8" off the bottom of stair stringers and affix a 5/8" thick piece of pvc to keep the wood up off the wet pavement? (Seattle area where it rains all the time) If I do this, my bottom stringer rise, before treads are installed, will decrease to 5 1/8" - 5/8" = 4 1/2". I'm talking about the wood itself becoming 4 1/2" on the bottom rise.

I'm building deck stairs with 12 treads, 2 notched plus 2 closed stringers. The stringers are already cut and are 12' long.

My reason to want the pvc on the bottom is to prevent wood rot of acq pressure treated lumber on a concrete slab in constant rain

Thank you.

I am making a monorail stringer out of universal beam. What is the formula to determine the correct size beam

My stairs (indoor) rest on the stringers. but the stringer cutouts are not at 90 degrees. In other words the risers are not perpendicular to the treads and pitch forward as they meet the tread above. Are their specifications or requirements for the maximum angles the steps can vary from 90 degrees?


...

Continue reading at STAIR CONSTRUCTION, SPECIFIC ANGLE or SLOPE, or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.

Or see these

Recommended Articles

  • BUILDING CODES for STAIRS - Model & actual building codes for stairs, railings, guardrails, landings, risers, treads, and steps
  • CHECKLIST for STAIR INSPECTIONS
  • CODES for STAIRS & RAILINGS - Specifications for Stairs, railings, guardrails, landings, treads, & steps based on model & actual building codes
  • CONNECTORS, FASTENERS, TIES
  • DECK STAIR BUILDING DETAILS
  • FRAMING CONNECTORS & JOIST HANGERS
  • PLATFORMS & LANDINGS, ENTRY & STAIR
  • SLIP TRIP & FALL HAZARD LIST, STAIRS
  • STAIR CODES & STANDARDS
  • STAIR RISE & RUN CALCULATIONS
  • STAIR STRINGER DEFECTS
  • STAIR STRINGER SPECIFICATIONS
  • STAIR TREAD DIMENSIONS
  • TOE NAILED FRAMING CONNECTIONS

Suggested citation for this web page

STAIR STRINGER SPECIFICATIONS at - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.

Or see this

INDEX to RELATED ARTICLES: ARTICLE INDEX to STAIRS RAILINGS LANDINGS RAMPS

Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia


...

Ask a Question or Search InspectApedia

Try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly.

Search the InspectApedia website

Note: appearance of your Comment below may be delayed:if your comment contains an image, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. Apologies for the delay.

Technical Reviewers & References

Click to Show or Hide Citations & References

  • [7] The Circular Staircase, Mary Roberts Rinehart
  • [8] Construction Drawings and Details, Rosemary Kilmer
  • [9] Falls and Related Injuries: Slips, Trips, Missteps, and Their Consequences, Lawyers & Judges Publishing, (June 2002), ISBN-10: 0913875430 ISBN-13: 978-0913875438
  • [11] The National Institute of Standards and Technology, NIST (nee National Bureau of Standards NBS) is a US government agency - see www.nist.gov
    • "A Parametric Study of Wall Moisture Contents Using a Revised Variable Indoor Relative Humidity Version of the "Moist" Transient Heat and Moisture Transfer Model [copy on file as/interiors/MOIST_Model_NIST_b95074.pdf ] - ", George Tsongas, Doug Burch, Carolyn Roos, Malcom Cunningham; this paper describes software and the prediction of wall moisture contents. - PDF Document from NI
  • [12] Slips, Trips, Missteps and Their Consequences, Second Edition, Gary M. Bakken, H. Harvey Cohen,A. S. Hyde, Jon R. Abele, ISBN-13: 978-1-933264-01-1 or ISBN 10: 1-933264-01-2, available from the publisher, Lawyers ^ Judges Publishing Company,Inc., www.lawyersandjudges.com [email protected]
  • [13] Slips, Trips, Missteps and Their Consequences, Gary M. Bakken, H. Harvey Cohen, Jon R. Abele, Alvin S. Hyde, Cindy A. LaRue, Lawyers and Judges Publishing; ISBN-10: 1933264012 ISBN-13: 978-1933264011
  • [14] The Stairway Manufacturers' Association, (877) 500-5759, provides a pictorial guide to the stair and railing portion of the International Residential Code. [copy on file as http://www.stairways.org/pdf/2006%20Stair%20IRC%20SCREEN.pdf ] -
  • [14a] "Visual Interpretation Of The International Residential Code (IRC) 2006 Stair Building Code", The Stairway Manufacturers Association, [Portions of this document reproduce sections from the 2006 International Residential Code, International Code Council, Falls Church, Virginia.},
    The Stairway Manufacturers Association website stairways.org provides free downloads of stairway handrailing profiles and dimensions
  • [17] Steps and Stairways, Cleo Baldon & Ib Melchior, Rizzoli, 1989.
  • [18] The Staircase, Ann Rinaldi
  • [19] Common Sense Stairbuilding and Handrailing, Fred T. Hodgson
  • [20] The Art of Staircases, Pilar Chueca
  • [21] Building Stairs, by pros for pro, Andy Engel
  • [22] A Simplified Guide to Custom Stairbuilding, George R. Christina
  • [23] Basic Stairbuilding, Scott Schuttner
  • [24] The Staircase (two volumes), John Templar, Cambridge: the MIT Press, 1992
  • [25] The Staircase: History and Theories, John Templar, MIT Press 1995
  • [26] >Steps and Stairways, Cleo Baldon & Ib Melchior, Rizzoli, 1989.
  • [27] "The Dimensions of Stairs", J. M. Fitch et al., Scientific American, October 1974.
  • [28] Stair & Walkway Standards for Slipperiness or Coefficient of Friction (COF) or Static Coefficient of Friction (SCOF)
    • ANSI A1264.2
    • ANSI B101
    • ASTM D-21, and ASTM D2047 
    • UL-410 (similar to ASTM D-21)
    • NSFI 101-B  (National Floor Safety Institute)
    • NSFI Walkway Auditing Guideline (WAG) Ref. 101-A& 101-B (may appear as ANSI B101.0) sets rules for measuring walkway slip resist
    • OSHA - (Dept of Labor CFR 1910.22 does not specify COF and pertains to workplaces) but recognizes the need for a "qualified person" to evaluate walkway slipperiness
    • ADA (relies on the ANSI and ASTM standards) 

Books & Articles on Building & Environmental Inspection, Testing, Diagnosis, & Repair

  • Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the InspectAPedia Bookstore. Also see our Book Reviews - InspectAPedia.
  • ...
  • Carson, Dunlop &Associates Ltd., TorontoCarson, Dunlop & Associates Ltd., 120 Carlton Street Suite 407, Toronto ON M5A 4K2. Tel: (416) 964-9415 1-800-268-7070 Email: [email protected] The firm provides professional HOME INSPECTION SERVICES and also extensive HOME INSPECTION EDUCATION and home inspection-related PUBLICATIONS. Alan Carson is a past president of ASHI, the American Society of Home Inspectors.

    Thanks to Alan Carson and Bob Dunlop, for permission for InspectAPedia to use text excerpts from The Home Reference Book & illustrations from The Illustrated Home. Carson Dunlop Associates' provides extensive home inspection education and report writing material.

    The ILLUSTRATED HOME illustrates construction details and building components, a reference for owners & inspectors.
    Special Offer: For a 5% discount on any number of copies of the Illustrated Home purchased as a single order Enter INSPECTAILL in the order payment page "Promo/Redemption" space.

    TECHNICAL REFERENCE GUIDE to manufacturer's model and serial number information for heating and cooling equipment, useful for determining the age of heating boilers, furnaces, water heaters is provided by Carson Dunlop Weldon & Associates
    Special Offer: Carson Dunlop Associates offers InspectAPedia readers in the U.S.A. a 5% discount on any number of copies of the Technical Reference Guide purchased as a single order. Just enter INSPECTATRG in the order payment page "Promo/Redemption" space.

  • Home Reference Book - Carson Dunlop AssociatesThe HOME REFERENCE BOOK - the Encyclopedia of Homes, Carson Dunlop & Associates, Toronto, Ontario, 25th Ed., 2012, is a bound volume of more than 450 illustrated pages that assist home inspectors and home owners in the inspection and detection of problems on buildings. The text is intended as a reference guide to help building owners operate and maintain their home effectively. Field inspection worksheets are included at the back of the volume.
    Special Offer: For a 10% discount on any number of copies of the Home Reference Book purchased as a single order. Enter INSPECTAHRB in the order payment page "Promo/Redemption" space. InspectAPedia.com editor Daniel Friedman is a contributing author.

    Or choose the The HOME REFERENCE eBook for PCs, Macs, Kindle, iPad, iPhone, or Android Smart Phones.
    Special Offer: For a 5% discount on any number of copies of the Home Reference eBook purchased as a single order. Enter INSPECTAEHRB in the order payment page "Promo/Redemption" space.


    GO TO Carson Dunlop's Home Study Course Information - How to Become a Home Inspector: Carson Dunlop's nationally recognized Home Study Course, selected by ASHI the American Society of Home Inspectors and other professionals and associations. This website author is a contributor to this course.    GO TO Carson Dunlop's Home Study Course Information - How to Become a Home Inspector: Carson Dunlop's nationally recognized Home Study Course, selected by ASHI the American Society of Home Inspectors and other professionals and associations. This website author is a contributor to this course.   GO TO Carson Dunlop's Home Study Course Information - How to Become a Home Inspector: Carson Dunlop's nationally recognized Home Study Course, selected by ASHI the American Society of Home Inspectors and other professionals and associations. This website author is a contributor to this course.
  • Building inspection education & report writing systems from Carson, Dunlop & Associates Ltd

    COMMERCIAL BUILDING INSPECTION COURSES - protocol ASTM Standard E 2018-08 for Property Condition Assessments

    HOME INSPECTION EDUCATION COURESES (Canada)

    HOME INSPECTION EDUCATION COURSES (USA) including home study & live classes at eleven colleges & universities.

    HOME INSPECTION EDUCATION: HOME STUDY COURSES - [email protected] Training 10-course program.
    Special Offer: Carson Dunlop Associates offers InspectAPedia readers in the U.S.A. a 5% discount on these courses: Enter INSPECTAHITP in the order payment page "Promo/Redemption" space. InspectAPedia.com editor Daniel Friedman is a contributing author.

  • The Horizon Software System manages business operations,scheduling, & inspection report writing using Carson Dunlop's knowledge base & color images. The Horizon system runs on always-available cloud-based software for office computers, laptops, tablets, iPad, Android, & other smartphones
Sours: https://inspectapedia.com/Stairs/Stair-Stringer-Specifications.php

Stair Tread and Riser Ideas That Refresh Your Stairs

Install Stair Tread and Riser Covers

The ultimate way to revamp your stairs is to remove the stair treads and risers and completely replace them. But that's more work and more cost than you need to take on—especially when there is a far easier solution.

Instead, install covers over the stair treads and risers. With these decorative covers, all parts of your stairs remain in place. Once installed, the stair tread and riser covers look exactly like the real thing.

The advantage is that you don't need to take on the task of ripping out the entire treads/risers in order to install new treads and risers. Not only that but the heavier premium hardwood used for stair treads is very expensive.

Stair refacing kits come with thin solid hardwood or engineered wood treads and risers. The pieces might be wider than your stairs but you can cut them down to size. Then, attach to your existing stairs with a nailgun or with finish nails.

Stair refacing kits do raise the level of your stairs. It's something you will notice at the first and last steps, but not in the middle part of the run.

Sours: https://www.thespruce.com/ways-to-decorate-stairs-1822572
  1. Xbox one controller tablet mount
  2. Family lawyers in ocala fl
  3. Western dental freedom elite plan
  4. Ip helper address vlan
  5. Datsun 240z body for sale

7 Types of Stair Stringers (& the Best Materials to Use)

Stair StringerStaircase construction comes with a host of decisions that have to made. What type of staircase is being built? What are the best materials to use for the various components? What are the best styles use for the different staircase parts? In this article we will examine the best material for stair stringers and the different types of stair stringers.

How many types of stair stringers are there?

When it comes to staircase terminology, most people are familiar with treads (which you step on) and risers (vertical portion of the stair between each tread). But what exactly are stringers?

A stringer is the vertical support board or structural member that runs along each side or center of the staircase. The treads and risers are fixed into the stringer. Different stringers can combine with different types of stair treads to provide an almost endless combination of stair designs. 

When located on either side of the staircase, the inner stringer is located against the wall, while the outer stringer is on the side of the staircase open to view. In some cases, the stairway may be in the center of the space with two outer stringers.

Stair stringers are constructed in a variety of materials and styles and finishes that can contribute to the look and functionality of the staircase. 

What is the best material for stair stringers?

The best material for a stair stringer depends on both the functionality of the staircase and the look desired. Steel, aluminum and various types of wood are common materials used for stair stringers.

Steel

Steel stringerSteel is an alloy made up of iron, carbon and other materials which can rust. To prevent rusting, galvanized or stainless steel is often used. Galvanized steel features a long-lasting zinc coating to prevent corrosive materials from reaching the steel below. With stainless steel, chromium, nickel, nitrogen and molybdenum are added to enable the steel to resist corrosion.

Steel stair stringer applications

Steel stair stringers are popularly used in staircases in homes, business and industrial areas. Steel stringers can also be used in outdoor applications, especially if made of galvanized or stainless steel. Prefab metal stairs with steel stringers are a good option if the staircase needs to be able to stand up to heavy weight use, such as in industrial applications. Bolt-together metal stairs use formed steel stringers for a functional, lightweight metal stair system. Structural steel stair stringers are used in the design and manufacture of commercial stairs. 

Steel stair stringer advantages & disadvantages

Pros
Steel stair stringer
  • The primary advantage of using a steel stair stinger is its strength and durability, which enables it to withstand high weight loads and high traffic.
  • Steel stringers can be shaped in almost any form, allowing you to create custom staircase options, such as curved and spiral, and also provide a modern look.
  • When metal stairs are desired, steel stair stringers are less expensive than those made of aluminum.
  • Steel stringers are easier to install than wood stringers as they can just be bolted together.
  • Because they are easier to install than wood stringers, prefab steel stringers are also less expensive to install - whether you are completing a DIY project or hiring a professional.
  • Steel stair stringers require very little maintenance, whether indoor or out. They are resistant to extreme weather conditions, rot and pests.
  • Steel stringers are fire resistant providing an additional safety feature for egress stairs. 
Cons
  • One of the biggest disadvantages of metal stair stringers is the noise caused when walking up and down the steps.
  • While less expensive than aluminum stair stringers, steel stringers are more costly than those made of wood.
  • If not done by and expert, the welding seams may look rough and even ruin the appearance of the stair stringer. If you are doing a DIY project, be sure to buy pre-fabricated stringers and make sure the welds are of high quality.

Aluminum

Aluminum StringerUnlike steel, aluminum is natural element that is corrosion resistant without any type of treatment. Aluminum is also lighter than steel.

Aluminum stair stringer applications

Aluminum stair stringers can used in a variety of industrial, commercial and residential staircases.

Aluminum stair stringer advantages & disadvantages

Pros
  • Due to its lighter weight, aluminum is less expensive to transport and install than steel, so it’s good to use when the stairs need to be portable
  • Installation of aluminum stair stringers is easy, which saves both time and labor costs.
  • Aluminum is very malleable and flexible and therefore can be constructed in a variety of shapes – including spiral stairs.
  • Due to its natural corrosion resistant layer, aluminum stair stringers are durable and require little maintenance.
Cons
  • Aluminum stair stringers are more expensive than those made of steel.
  • Because they are lighter weight, aluminum stair stringers are less sturdy than steel.
  • Aluminum stair stringers are more prone to nicks and scratches than steel stair stringers.
  • The oxide layer of aluminum tends to dull its metallic shine, giving the material a grayish appearance.

Wood

Wood stair stringers come in different types of natural wood including oak, maple and walnut. Stair stringers can also be made from pressure treated or engineered wood. Wood stair stringers can be pre-cut for easier installation or uncut if a custom installation is preferred.

Wooden stair stringer applications

Wood stair stringers are normally found in residential or commercial buildings. In addition to their use as a support structure for the staircase, wood stair stringers add a warm and natural look to the room or environment.

Wooden stair stringer advantages & disadvantagesWood stair stringer

Pros
  • Wood stair stringers are durable and easy to clean.
  • Because of the variety of options available, wood is versatile and can compliment both classic and modern looks.
  • Pressure treated wood stair stringers are normally used for outdoor deck stairs. The pressure treatment prevents against rot and pests for years and tends to be economical.
  • Engineered wood is made from a thin layer of hardwood bonded over high quality ply-wood. Engineered wood provides stability, resists bowing and shrinking, and is more resistant to heat and water than solid hardwood. It is also generally less expensive and easier to install.
Cons
  • Unless very high-quality wood is used, you may have issues with it being straight and having an extreme number of knots.
  • Solid hardwood can be more expensive than other options, but generally increases the value of your home or building.
  • Unlike solid hardwood, engineered hardwood can be refinished only once or twice before the surface hardwood layer is exhausted.

What are the different types of stair stringers?

Just as stair stringers can be made from different kinds of materials, they can also be built in different styles and types. The difference in styles depends on the type of stair design, the function and use of the stair, and the material used for construction of the stairs. 

Commercial and industrial stair stringer styles

Commercial and industrial stair stringers are usually made of steel, aluminum, or stainless steel. Common styles for these stair stringer materials include:

  • Double stringers (two stringers on outside of treads)
  • Center beam stringer (one stringer underneath the tread)

Double stringerDouble stringer

Double stair stringers include two stringers each at the outside of each stair tread. The double stair stringer is the most common stringer style forTypes of double stair stringers commercial and industrial stairs. The design is used for prefabricated stair systems and can work with many types of stair railings. Steel stairs designed with double stringers often use structural steel shapes:

 

 

  • Channel stringers
  • HSS tube stringers
  • Plates stringers
Double stair stringer applications

Double stair stringers are commonly used for egress stairs in commercial buildings, for industrial stairs, and for residential metal stairs. The double stringer design provides added support to meet engineering requirements to ensure a safe and durable design.

Double stair stringer advantages and disadvantages
Pros
  • Great design for prefabricated stairs to make installation easier
  • Flexible and functional design for fire escape stairs and industrial stairs
  • Double stringer supports increase the strength of the stair to meet engineering requirements
Cons
  • Requires two stringers, which might increase cost

Center beam stringer

Center beam stringer

Center beam stringers are a type of mono stringer used in high-end feature stairs for offices, hotels, and other highly visible locations. This type of stringer uses a single beam, usually steel or stainless steel, that sits underneath the stair treads and provides the support for the stairs. Steel and stainless steel I-beams or HSS tube are common shapes used to fabricate center beam stringers. 

 

Center beam stringer applications

Center beam stringers are a common type of stringer in monumental and feature staircases. The stringer is attached to the underside of the stair stringers and runs down the center of the flight. 

Center beam stringer advantages & disadvantages
Pros
  • Provides a high-end design aesthetic for ornamental and feature staircases
Cons
  • Typically more expensive to construct and install

Residential stair stringer types

Closed (routed, housed, box or side) stringer

Closed stair stringers are referred to by many different names including routed, housed, side and box stringers. This type of stringer is positioned outside the treads and risers so that the stairs are contained in between the two stringers. Closed stair stringers feature notches in which the treads and risers can be inserted. With this type of stringer, the edge of the tread is not visible and the vertical parts of the handrail (made up of balusters and newels) are typically attached to the top of the stringer.

 

Closed (routed, housed box or side) stair stringer applications
Closed stringer

Closed stair stingers can be used for staircases just about anywhere – in homes, commercial buildings and industrial applications. Closed stair stringers are commonly used for outdoor stairs.

Closed (routed, housed box or side) stair stringer advantages & disadvantages
Pros
  • Closed stair stringers can be built with open or closed risers depending on the need and desired look.
  • Staircases with closed stair stringers are generally easier and less expensive to build. In many cases, pre-cut stringers are available.
Cons
  • Staircases with closed stair stringers tend to provide a more basic and functional look than staircases built with other styles of stair stringers.

Open (cut or sawtooth) stringer

Sawtooth stringerOpen stair stringers are also called cut or sawtooth stringers. When viewed from the side the treads are exposed. When open stringers are used in staircase construction, the balustrade supporting the handrail is set directly on top of the steps.

Open (cut or sawtooth) stair stringer applications

Open stair stringers are used in environments where the staircase needs to be visually appealing, including in residences and commercial buildings. They are not usually found in industrial settings.

Open (cut or sawtooth) stair stringer advantages & disadvantages
Pros
  • Staircases with open stringers usually provide a more sophisticated and appealing look than closed stair stringers.
  • Open stair stringers can also have open or closed risers depending on the function and style desired.
Cons
  • A staircase with open stair stringers is more difficult to build and is usually more expensive than a staircase with closed stringers.
  • Since the sides of the tread are exposed, they need to be treated to provide an appealing look.

Mono stringer

As the name suggests, a mono stringer staircase uses a single but heavy-duty stringer beneath the center of the treads to support the staircase. Mono stingers are normally metal and welded to each tread with a bracket. All staircases with mono stringers have open risers.

Mono stringerMono stair stringer applications

Mono stair stringers are mostly used in modern homes and office buildings to achieve a contemporary look and are commonly used on spiral staircases.

Mono stair stringer advantages & disadvantages
Pros
  • Staircases with a mono stringer provide the most open-air look of any type of stair.
  • A variety of staircase styles, such as straight, U-shaped or winder, can be built using a mono stair stringer.
  • Mono stair stringers are extremely strong and durable and easily be designed around most building codes.
Cons
  • Mono stinger staircases need a customized, engineered stringer that is not readily available like pre-cut closed stair stingers.
  • Because both the treads and stringer are likely to be a custom design, this staircase design is typically more expensive.
  • Mono stringer stair cases are not normally used for long distances.

Twin stringerTwin stringer

A variation of the mono stair stringer is a twin stringer. In this case, two thin stringers take the place of the mono stringer. They are usually placed about 6” apart in the middle of the stairs. They can also be placed off center to create a more striking look.

Twin stair stringer applications

Like mono stair stringers, twin stair stringers are mostly used in contemporary residences and offices to achieve an open, modern look.

Twin stair stringer advantages & disadvantages
Pros
  • The stringers tend to be more hidden behind the stair treads than with a mono stringer design.
Cons
  • As with mono stringer stairs, twin stingers are not usually used for long distances because the stairs can twist.

Cantilevered stringer

A staircase with a cantilevered stringer features a single side stringer which is in mounted inside a wall and reinforced. The treads, which are supported by the stinger, protrude from the wall and the staircase is normally open on the other side.

Cantilevered Stringer
Cantilevered stair stringer applications

Cantilevered stair stringers are used in homes and offices to achieve a stunning architectural effect.

Cantilevered stair stringer advantages & disadvantages
Pros
  • With their floating appearance, cantilever stairs create a more open and spacious appearance to the room.
  • Floating stairs with cantilevered stair stringers provide one of the most modern, unique and visually interesting looks.
  • Because the stair stringer is installed in the wall, cantilever stairs can provide more headroom.
Cons
  • With cantilever staircases, the design of the support structure needs to be taken into consideration and installed into the wall before it is complete.
  • Due to the additional structural requirements, cantilever stairs can be more expensive to build than other types of staircases.
  • If not properly reinforced, the treads of cantilevered steps may sag on the open side.
  • Often, cantilever stairs do not have a railing to reinforce the floating effect, which can also make them more dangerous.

 

Final points on the different kinds of stair stringers

Staircase stringers are the part of the stair which provides support for and houses the treads and risers. The type of materials used for the stringers, as well as the style of the stringers, will affect the look of the staircase. A staircase with a closed stair stringer made of steel or wood may be utilized more for function that style. Other types of stair stringers such as open, mono and cantilever provide the opportunity for more dramatic and contemporary looks. 

 

FAQs

How many stringers are needed for stairs?

At least one stringer is needed for a stair designed with a center or mono stringer underneath the stair treads. Two stringers are used with a double or twin stringers positioned to the outside of the stair treads. 

Do stair stringers need support?

Stair stringers may need additional support depending on the length of the stair stringer and the width of the staircase. Wood stair stringers typically need additional supports between 6' and 10' lengths while metal stair stringers typically do not require additional supports. 

What is the maximum stair stringer length? 

The maximum stair stringer length depends on the material used for stringer construction, the stringer size, and the stair building code requirements. IBC stair code limits stair stringers to a maximum vertical height of 12' in a single run.

Can you build stairs without stringers?

You can build stairs without stringers if each stair tread provides it own structural support by constructing them as boxes or adding supports for each tread. Building stairs this way might be less economical than using stair stringers.

 


Ready to take the next step?

Contact us

Sours: https://blog.lapeyrestair.com/types-of-stair-stringers
How to build stairs. Install stringers and treads

LSC Adjustable Stringer Connector

    These products are available with additional corrosion protection.

    For stainless-steel fasteners, see Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.

    Many of these products are approved for installation with Strong-Drive® SD Connector screws.

LSC Adjustable Stringer Connector Load Table
  1. When installed on minimum 1 5/16" LVL or minimum 1 1/4" LSL stringers, allowable loads for DF/SP shall apply.
  2. When cross-grain bending or cross-grain tension cannot be avoided in the members, mechanical reinforcement to resist such forces shall be considered by the designer.
  3. #9 x 1 1/2" Strong-Drive® SD Connector screws may be substituted for 0.148" x 1 1/2" nails to achieve published nail values if the extra screw is installed in the narrow face of the stringer.
  4. Fasteners: Nail dimensions in the table are diameter by length. SD screws are Simpson Strong-Tie® Strong-Drive SD Connector screws. For additional information, see Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.

Code Reports & Compliance

Sours: https://www.strongtie.com/deckconnectors_decks/lsc_connect/p/lsc

Stair stringer depot indoor home

Home depot stringer steps

Post Your Comments?

Outdoor Stair Stringers Deck Stairs The Home Depot

2 hours ago 8-Step Pressure-Treated Cedar-Tone Pine Stair Stringer Get head starts building outdoor stairs with Get head starts building outdoor stairs with this durable, cedar-tone stair stringer. Use the long-lasting stringer to build stairs on decks, gazebos, terraces and porches anywhere stairs will be …

Website:Homedepot.com

Category: Use words in a sentence

Head

How to Build Stair Stringers: Steps & Tips Home Depot

7 hours agoStep 5 Step 5 Trace an Open Stringer If your closed stringers will be used in conjunction with open stringers, cut an open stringer first and use it as a template to mark the closed stringers. Position the template with the step corners set back from the edge of a …

Website:Homedepot.ca

Category: Use to in a sentence

Stair Treads Stair Parts The Home Depot

2 hours ago 48 in. x 11-1/2 in. Unfinished Pine Stair Tread Made of two pine re-saw layers, the Surewood-LNL Made of two pine re-saw layers, the Surewood-LNL 48 in. x 11-1/2 in. Unfinished Pine Tread is applied to a radiate pine, edge glued core. For interior use only, our pine tread features a clean, uniform look that is clear of most knots and imperfections commonly found in solid pine treads.

Website:Homedepot.com

Category: Use words in a sentence

Outdoor Stair Stringers & Risers The Home Depot Canada

5 hours ago Pylex Collection 10 - 15 Steps Aluminium Stair Riser Black 7 1/2 in x 9 1/16 in Includes one (1) riser only. (6) $384.

Website:Homedepot.ca

Category: Use words in a sentence

Home Depot Stringer

5 hours ago Pylex 4 Steps Steel Stair Stringer Black 7 1 2 In X 10 1 4 In Includes 1 Stair Riser 13904 The Home Depot Stairs Stringer Steel Stairs Stair Risers Pin By Adrian Torner On Garden Steel Stairs Stairs Design Stairs Stringer 8 Step Pressure Treated Pine Stair Stringer 178329 The Home Depot Stairs Stringer Outdoor Stairs Outdoor Projects

Website:Louiesearlewebs.s3.us-east-1.amazonaws.com

Category: Use words in a sentence

Home

4Step Ground Contact PressureTreated Pine Stair Stringer

3 hours ago 4-Step Pressure-Treated Cedar-Tone Pine Stair Stringer Get head starts building outdoor stairs with Get head starts building outdoor stairs with this durable, cedar-tone stair stringer. Use the long-lasting stringer to build stairs on decks, gazebos, terraces and porches anywhere stairs will be …

Website:Homedepot.com

Category: Use words in a sentence

Head

MicroPro Sienna Pressure Treated Wood 5Step Stair Stringer

3 hours ago The 5-Step Stringer has an elevation of 33-1/2 inches and installed length of 52 inches. Improved corrosion resistance with exterior metal fasteners and hardware. When It's Dry, It's Time to Apply apply a water repellent/stain as soon as the wood is dry to the touch after construction to help reduce surface weathering and colour fading.

Rating: 3.1/5(20)

Brand: Micropro Sienna

Website:Homedepot.ca

Category: Use words in a sentence

Has, Hardware, Help

How to Build Steps Using Home Depot Risers eHow

4 hours agoHome Depot risers are sold either finished or unfinished and in a variety of measurements, usable as is on Home Depot precut stair stringers. If your staircase is narrower than the premade risers are long, though, you can cut them to fit the size of staircase that you're building. The risers are cut squarely -- with 90-degree angles at each

Website:Ehow.com

Category: Use to in a sentence

Home

Pylex Universal Steel Stringer black The Home Depot Canada

Just Now This universal stringer allows build a staircase, step by step. It attaches to a wood stringer of 2-in x 4-in , 2-in x 6-in , 2-in x 8-in or 2-in x 10-in With its steel structure, this stair frame provides stability and durability and requires no maintenance

Rating: 4/5(4)

Price: $14.79

Brand: Pylex

Website:Homedepot.ca

Category: Use black in a sentence

Wood Outdoor Stair Stringers at Lowes.com

5 hours ago ReliaBilt. 3-Step Wood Stair Stringers. Model # 054699051560. Find My Store. for pricing and availability. 1. Severe Weather. 4-Step Pressure Treated Wood Stair Stringers. Model # 1255901.

Website:Lowes.com

Category: Use at in a sentence

Stair Stringers at Lowes.com Lowe's Home Improvement

9 hours ago Flexco #800 Series Rubber Stair Tread 60-in Berry Rubber Stair Stringers. Flexco rubber stair treads are the perfect complement to flooring projects in shopping malls, retail settings, government centers, hospitals and airports. As easy to install as they are to maintain. Contains 10% natural rubber, a renewable resource.

Website:Lowes.com

Category: Use at in a sentence

Hospitals

Stair Stringers and Treads Specifier's Guide

7 hours ago TimberStrand ® LSL Stair Stringers and SturdiStep Stair Treads Specifier’s Guide 9010 ember 2015Sept 2 1¼" 1.3E TimBERSTRand® LSL SAIRT STRINGERS Suggested Residential Stringer Attachment Details 40 psf Live Load and 12 psf Dead Load High End (1) Minimum throat depths may be reduced by an additional ¼" for 117⁄8" and 14" material depths if 2x4 reinforcement is

Website:Owenlumber.com

Category: Use and in a sentence

High

Watch This Video before Purchasing Premade Stair Stringers

3 hours ago http://stairs4u.com/how_to_do_it_yourself.htm Click on this link for more do-it-yourself information about stair building and construction. I have never purc

Website:Youtube.com

Category: Use before in a sentence

Http, Htm, Have

Outdoor Stair Stringers at Lowes.com

7 hours ago Simpson Strong-Tie 2-Step Steel Stair Stringers. The LSCZ adjustable stair-stringer connector offers a versatile, concealed connection between the stair stringer and the carrying header or rim joist while replacing costly framing. Field slopeable to all common stair stringer pitches, the LSCZ connector is suitable for either solid or notched

Website:Lowes.com

Category: Use at in a sentence

Pressure Treated Outdoor Stair Stringers at Lowes.com

7 hours ago 59. 6-Step Pressure Treated Wood Stair Stringers. Model # STR6612. Find My Store. for pricing and availability. 26. Severe Weather. 3-Step Pressure Treated Wood Stair Stringers. Model # 476226.

Website:Lowes.com

Category: Use at in a sentence

How to custom fit and cut skirt boards of stair stringers

3 hours ago Visit http://oakstairwayremodel.com to see all 8-steps and watch more videos.http://oakstairwayremodel.comThis short video is a sample from our DIY Stairway

Website:Youtube.com

Category: Use to in a sentence

Http

Pylex 5Steps Steel Stair Riser black The Home Depot Canada

1 hours ago Hello SIr, In fact for an 5 steps stringer the maximum spacing is 62" for residential use and 24" for commercial use. We can provided engineering report if desired, simply send us an email at [email protected] Anything else, please let us know.

Rating: 4.7/5(52)

Price: $44.98

Brand: Pylex

Website:Homedepot.ca

Category: Use black in a sentence

Hello

Outdoor Stairs The Home Depot Canada

Just Now Peak Products 5-Step Steel Stair Riser in Black (Includes 1 Stair Stringer) (82) $59. And. 58. Cents. / each. Compare. Collection 10 - 15 Steps Aluminium Stair Riser Black 7 …

Website:Homedepot.ca

Category: Use words in a sentence

AC2® Ground Contact Green Pressure Treated Stringer at

5 hours ago This is a 10-step stringer, pre-cut deck product accessory used in the construction of steps. This stringer has been pressure treated for ground contact (GC) applications and can be completely buried in the ground. It's also suitable for fresh water use and can be submerged. AC2® brand treated wood products use MicroPro? technology, which is a revolutionary way to pressure treat wood for

Website:Menards.com

Category: Use at in a sentence

Has

Deck Stairs at Lowes.com Lowe's Home Improvement

3 hours ago The stair stringer supports the individual steps and determines the size and angle of the stairs. Risers close the vertical gap between the steps. You'll also need treads, the part of the stair that you walk on. A steel stringer connector is a great option for securing your stairs as it supports the treads and risers.

Website:Lowes.com

Category: Use at in a sentence

Artistic Finishes Stair Stringer Installation YouTube

3 hours ago A quick rise vs. run review to determine proper stair tread installation and how to double check that your stair tread and risers will fit properly on the pr

Website:Youtube.com

Category: Use words in a sentence

How

Amazon.com: stair stringers

8 hours ago ATHOR Black Handrail,3 Step Handrail Fits 1 to 3 Steps Mattle Wrought Iron Handrail Stair Rail with Installation Kit Hand Rails for Outdoor Steps(Black)) (Blcak) 4.4 out of 5 stars 8 $120.99 $ 120 . 99

Website:Amazon.com

Category: Use words in a sentence

Handrail, Hand

Dual Stringer Stairs (Double Stringer Design) Paragon Stairs

1 hours ago Double Stringer Design. Paragon’s dual stringer floating stairs feature two steel support beams. This design offers extra support without the space requirements of a bulky traditional staircase. The second beam is perfect for extra wide staircases and projects that want a …

Website:Paragonstairs.com

Category: Use words in a sentence

FastStairs Stringer Kits Easy to Use Under 1 Hour

8 hours ago Fast-Stairs™ are modular adjustable steel stair stringers; simply screw step/treads and railings (not included) to the engineered steel stair stringers to build solid, square & plumb, free-standing indoor or outdoor stairs.Designed for fail-safe stair building for all, our 32 models can frame 2 ½ to 13 ft high stairs and more.With the perforated steel stringers you can fasten any stair

Website:Fast-stairs.com

Category: Use to in a sentence

High

Framing a Staircase — LANDI DESIGN + BUILD

1 hours ago 34 steps to building cut-stringer stairs. By John Spier Issue 170. Stair construction can intimidate even the most seasoned carpenters and there are lots of ways to build stairs. But regardless of the method you choose, every set of stairs requires the same basic approach to get from one floor to another safely, comfortably, and legally.

Website:Landidesignbuild.com

Category: Use a in a sentence

How to Secure Deck Stringers Home Guides SF Gate

2 hours ago How to Secure Deck Stringers. Stringers support the steps of a stairway and fasten to the framing of the deck. The primary method of connection between a stringer and the framing is a stringer hanger.

Website:Homeguides.sfgate.com

Category: Use to in a sentence

How, Hanger

Five Useful Ways To Connect Stair Stringers Stairway

3 hours ago http://www.homebuildingandrepairs.com/stairs/index.html Click on this link if you have more questions about stair stringers, stairway design for staircase co

Website:Youtube.com

Category: Use words in a sentence

Http, Homebuildingandrepairs, Html, Have

How To Build Stairs in a Few Simple Steps Home Fixated

4 hours ago When I need to build stairs I go to Lowes or Home Depot grab a pre made stringer, then go to the 2x12s lay it down and trace the stringer onto it as many times as needed. I then buy the 2×12(s) with my traced lines. The rest is self explanatory.

Website:Homefixated.com

Category: Use in in a sentence

Home

How To Adjust Riser Height PreManufactured Stair Stringers

3 hours ago http://stairs4u.com/how_to_do_it_yourself.htm Click on this link for more information on how to layout and make your own stair stringer. This video realistic

Website:Youtube.com

Category: Use words in a sentence

Http, Htm, How

8Step PressureTreated CedarTone Stair Stringer, Precut

3 hours ago Save time (and saw blades) building stairs with pre-cut, pre-stained stringer Ideal for stairs on decks, docks, porches, and other areas stairs will be exposed to weather Pressure treated and color infused with cedar-tone colorant – no staining needed Dimensions: 1-1/2 …

Rating: 4.2/5(49)

Website:Amazon.com

Category: Use words in a sentence

Everything You Need To Know About Mobile Home Steps

7 hours ago You can buy a 3 step stringer from your local home improvement store for less than $20. This stringer at Home Depot is $13.97: Regulations and Codes. As with all home construction projects, rules and regulations will vary. Some states require a platform at the top of the steps and some states regulate the width and height of each riser.

Website:Mobilehomeliving.org

Category: Use words in a sentence

Home, Height

6Step Pressure Treated Wood Stair Stringers in the

9 hours ago Cut with 6-1/2-in rise and 10-in tread. For decks or landings with a height between 35.5 inches and 41.5 inches. For optimal performance of paint and stain coatings, allow the wood to dry after installation, and apply a UV protective finish to enhance the long-term beauty. Use …

Website:Lowes.com

Category: Use in in a sentence

Height

How to Build a Shed Building a Ramp, Steps, and Doors

2 hours ago The shed steps for the single door were pretty easy to build. They took a few hours to build, and the step-by-step instructions are below. Step Stringers. I bought 3 pre-cut step stringers from Home Depot. Buying these pre-cut stringers cut off a lot of time in constructing the steps, so I definitely recommend doing this.

Website:Justmeasuringup.com

Category: Use to in a sentence

Hours, Home

Replacing plywood stairs with oak (grooved stringer

8 hours ago The stairs look solid, but they are actually mostly hollow inside with few “ribs” for reinforcement. With stain and sealer each step cost me about $200. Stairs were stained a dark walnut to match the color of the floors. On the bottom of each step I had a 3/4” channel routed out for aluminum housing that would hold the LED strips.

Website:Reddit.com

Category: Use with in a sentence

Hollow, Had, Housing, Hold

3Step Weather Shield PressureTreated Wood CedarTone

9 hours ago Pylex 4-Steps Steel Stair Stringer black 7-1/2 in. x 10-1/4 in. (Includes 1 Stair Riser)-13904 - The Home Depot The easiest way to build a solid and lasting staircase. Light and easy to manipulate, this stair frame is quickly installed.

Website:Pinterest.com

Category: Use words in a sentence

Home

BILCO Stair Stringer

7 hours ago BILCO Stair Stringer Installation Instructions 1”x 1” notch Note: (6) masonry nails are sufficient for anchoring each stringer, (3) nails through top flange and (3) nails through bottom flange. Additional mounting holes are provided on stringer for anchoring hole loca-

Website:Buymbs.com

Category: Use words in a sentence

Holes, Hole

Staircase Kits at Lowes.com Lowe's Home Improvement

4 hours ago Mylen Stairs Condor 42-in x 13.34-ft 1 Platform Rails White Spiral Staircase Kit, Fits Height: 102-in to 114-in (11 Treads) Mylen’s 42in diameter Condor spiral stairs create space and flexibility for your home design. With a small footprint and Mylen’s safety standards, the benefits of a spiral staircase are endless.

Website:Lowes.com

Category: Use at in a sentence

Height, Home

Dictionary

Frequently Asked Questions

How do you build a stair stringer at Home Depot?

There are 7 steps to completing this project: Step 1: Set Stair Measurement on Square. Step 2: Mark the Top Cutting Line. Step 3: Mark the Cutting Line. Step 4: Finish Cut With a Jigsaw. Step 5: Trace an Open Stringer. Step 6: Attach Stair Angles. Step 7: Attach Stairs From Underside.

Where to buy outdoor stringers at Home Depot?

Get free shipping on qualified Stringer Outdoor Stair Stringers or Buy Online Pick Up in Store today in the Lumber & Composites Department. #1 Home Improvement Retailer Store Finder Truck & Tool Rental For the Pro Gift Cards Credit Services Track Order Track Order Help The Home Depot Logo To See Inventory Choose A Store

Where can I buy an 8 step Stringer?

Not available for purchase online. Please visit a Menards store for information and to purchase. This is an 8-step stringer, pre-cut deck product accessory used in the construction of steps. This stringer has been pressure treated for ground contact (GC) applications and can be completely buried in the ground.

Are there any pressure treated outdoor stair stringers?

Home Lumber & Composites Decking Deck Stairs Outdoor Stair Stringers Outdoor Stair Stringers Ground Contact Paintable Stainable Wood Stringer 10ResultsFeatures: Pressure Treated Sort by:Top Sellers Top SellersMost PopularPrice Low to HighPrice High to LowTop Rated Products Get It Fast In Stock at Store Today (8) Cumberland & nearby stores

Sours: https://useenglishwords.com/results/home-depot-stringer-steps/
How To Install Cap-A-Tread Stair Renewal System - The Home Depot

Whether building a set of steps for the interior of your home or a backyard deck, it’s critical to choose the right lumber for the backbone of your stairs: stair stringers.

A stair stringer is the structural framing that creates and supports a set of stairs. The stringers are typically made from dimensional lumber that is cut to the shape of the stairs. They should be stout enough to support the weight of the steps and the people using them. Should a stair stringer be 2×10 or 2×12?

It is acceptable and within building code guidelines to use either 2×10 or 2×12 dimensional lumber to create a set of stairs; however, a stair stringer should not be less than 3.5 inches wide at its narrowest point to provide adequate strength for the load the stairs will be supporting.

Stair Stringers 2x10 or 2x12

Contents (Jump to Topic)

What Is a Stair Stringer?

Think of a stair stringer as the framing for a set of stairs. They are cut to create the shape of the stairs. As such, they determine the height of each step as well as the depth of each tread. This is typically referred to as rise over run. Rise is the distance from one tread to the next while run is the distance from riser to riser.

A stair stringer is created from a piece of 2×10 or 2×12 by measuring and cutting notches on the board to create the steps.

Why is a Stair Stringer Important?

When failures do occur with stairs, the size of the notch cut into the stringer is often the culprit. A notch that is too deep for the board creates a throat (the space between the corner of the notch and the opposing edge of the board) that is too narrow to hold an adequate load.

If the throat is too narrow, the stairs could fail, causing catastrophic injury. Unfortunately, when this type of failure occurs, there is typically a little warning. The stairs collapse without warning. This makes using the proper stringer width critical when constructing stairs.

Stair Stringer 2×10 or 2×12?

While one might expect stair framing to have specific code requirements, the fact is there are few specific codes. Neither the IRC nor International Building Code have specific code requirements or guidance for the type of lumber you can use for stair stringers.

That said, what guidelines the IRC and IBC do narrow the field for what dimensional lumber you can use.

The International Building Code stipulates that a set of stairs must be able to handle a minimum concentrated load of about 40 pounds per square foot live, which refers to the temporary load placed upon the steps when someone is using them, or about 10 pounds per square foot dead, which is the amount of constant weight applied to the stairs.

For the throat to be strong enough to support this load, it should be at least 3.5 inches wide, the same width as a 2×4.

The IRC provides guidance for how high the risers can be and how deep the treads can be. According to the IRC, the maximum riser height is 7.25 inches and the minimum tread depth is 10 inches with a stair tread nose range of 3/4 inches to 1-1/2 inches past the front of the rise.

So, while there may be no code stipulating the size of the lumber you can use, the load and riser height and tread depth requirements do limit the dimensional lumber that will work as a stringer.

With these limitations and the 3.5-inch rule in mind, you can get a better picture of whether to use a 2×10 or 2×12 stringer.

Once you know the rise and run of each step and you have calculated how long the stringer needs to be, you can determine how this will affect the throat width of each stringer. Draw the first step using a square to mark the profile of the stairs.

Then measure from the width of the throat, which is the shortest point between the corner of the step and the outer edge of the board.

Imagine drawing a straight line that would connect the corner of each notch in the stair. This line should be no closer to the outer edge of the stringer than 3.5 inches to ensure proper structural integrity.

Can I Use 2×10 for Stair Stringers?

While using a 2×10 is acceptable, keep in mind that it limits the stair size you can use. By looking at standard stair heights, we can determine what dimensional lumber will work and what won’t work.

For example, the standard rise over run for stairs covering 9 feet is a 7-inch rise and 11-inch run. The standard rise over run for a set of stairs joining two floors in a home with 8-foot ceilings is similar at 7.5 inches and 10 inches.

For a 2×10 stringer, the maximum tread width you can achieve with a 7-inch rise and still maintain a 3.5-inch throat is about 10 inches if you use the maximum stair tread nose allowed by the building code of 1.25 inches (the stringer itself would have a run of about 9 inches).

If you want a deeper tread, you’ll have to cut deeper into the board, creating a larger notch and reducing the size of the throat. A 2×10 board may not be wide enough to handle the larger notch while still maintaining a 3.5-inch throat.

While it’s possible to increase the tread depth by decreasing the riser height to make the notch small enough to maintain a 3.5-inch throat in a 2×10 board, it will take a longer run to reach the second level. A longer set of stairs may not fit in the available space.

Can I Use 2×8 for Stair Stringers?

While you may find some information stating that it is okay to use 2x8s for stair stringers, in most cases, it won’t work. The 3.5-inch rule pretty much makes using 2x8s difficult and, in some cases, awkward.

While it is possible to reach the minimum stair depth tread of 10 inches (again using the 1.25-inch maximum tread nose depth) while still maintaining the minimum throat width of 3.5 inches, you would have to go with an awkward stair rise of just 4 inches.

This may work in cases where you’re using just a few stairs for a single room with multiple levels, such as a sunken living room. It’s impractical for stairs connecting multiple floors in a home. The total run and number of stairs would need to be nearly double that of a standard set of stairs to reach the second floor!

How to Cut Stair Stringers With a Framing Square

2x10 stair stringers

Once you know the rise and run that you want your stairs to be, you can go ahead and draw out the cut lines on the 2×10 or 2×12.

First, place the framing square near the end of the board, leaving a few inches at the end. Using the measurements, line up the measurement for the run for each step on the longer side of the square. Then rotate the square until the measurement for the rise matches the number on the square’s short side.

Once both measurements are lined up, use a pencil to trace the notch on the outer edge of the square.

Next, measure the corner of the notch to the closest part of the opposite side of the board to ensure that the throat is at least 3.5 inches wide.

Then slide the square down the board and continue to trace the shape of the stairs until you reach the other end of the board.

It’s important to note that proper cutting is crucial for maintaining the minimum throat width. When cutting a notch with a circular saw, the circular shape of the blades does not allow you to make a full cut at the endpoint of the cut.

Do not accommodate for this by cutting beyond your mark. This will cause structural weakness in the stringer. Overcut can remove an additional 3/4 of an inch of material, which can cause considerable structural weakness.

Instead, cut to the line with the circular saw, then use a hand saw to finish the cut. A better option is to drill a 1/4-inch hole at the corner of the notch and cut to the hole.

Other Factors That Impact Stringer Size

Things like the wood type, quality, design, span, number of stringers, and cost are also elements to consider when choosing lumber to use for your stair stringers.

While yellow pine is the most common wood used for stringers, it is possible to use hardwoods, such as oak, maple, walnut, ash, and hickory, all of which offer superior strength compared to standard pine boards.

They are also significantly more expensive, costing five times or more than the price of standard pine. Hardwood stringers only make sense if the stringers themselves will be exposed and you want to take advantage of the aesthetic appeal of hardwood.

Some companies also offer engineered wood that can be used for stringers, which also offer better strength qualities.

Span also makes a difference when it comes to selecting lumber size. A 2×12 stringer with a wider throat will need fewer supports than a 2×10 stringer with a 2.5-inch throat. This could make a difference if you have a functional open area under your stairs.

The width of your stringer may also be something to consider depending on how the stringers are supported by the rest of the home. Some stairs have two interior walls on either side, which means the stringer will have a significant amount of support from the house framing.

A set of stairs with one or two open stringers will not have the same support, requiring more strength. In these cases, it makes sense to use a 2×12 board for the stringers.

In some cases in which there is living space under the stairs, it may make sense to use 1 x10 stringer, which will give you an additional couple of inches of clearance for the headroom.

Quality is also an important factor to consider. Since wood is a natural building material, don’t expect all boards to have the same strength qualities. Look for boards that are in good condition with few knots when selecting lumber for a stair stringer. A knot that ends up in the throat of one of your notches will eventually dry out, potentially making the stairs structurally unsound.

It’s also important to note that there is a nominal cost difference when deciding whether to use 2X10 or 2X12 stringers. A 2×10 12-foot board will cost you about $20 at Home Depot, while a 2×12 12-foot board will cost you about $28. Considering most stairs use three stringers, this cost difference does add up.

What Size Lumber for Deck Stair Stringers

Deck stringers 2x10 or 2x12

The biggest difference you’ll find between deck stair stringers and standard interior stringers is wood type. Deck stair stringers use pressure-treated wood versus standard wood. It’s important to understand that while this treatment makes the wood more resistant to weather and pests, it does not make the lumber structurally stronger.

Because deck wood is exposed to weather, which can cause wear that impacts the structural integrity of the lumber, most pre-cut pressure-treated deck stair stringers use 2×12 lumber for both long and short spans.

Cedar, which is also an option for deck stairs, is stronger and more durable than pressure-treated lumber. As such, pre-cut cedar stringers often use 2×10 boards.

Conclusion

Given how critical the structural integrity of stair stringers is, it almost always makes sense to err on the side of caution and go with 2×12 lumber. Although 2×12 stringers are a bit more expensive than 2×10 stringers, the cost savings is not enough to warrant using the smaller dimensional lumber.

Use 2x12s for your stair stringers unless doing so creates a problem with the clearance in the space beneath the stairs. In the case of a stairwell that is supported on both sides by walls, 2×20 stringers are adequate as they gain the additional support of the wall studs. For decks, use 2×12 stringers unless you’re building a cedar deck.

Sours: https://weekendbuilds.com/stair-stringers-2x10-or-2x12/

Similar news:

You are all mine. Your moans, body, only I have the right to them. My, my, my. Yaroslav again began kissing Zhenya's entire neck, leaving aspirates and licking them. He growled, but not from the desire to take her, but from the surging tenderness and the desire to protect her from everyone.



136 137 138 139 140