Then take the total run (horizontal distance the stairs will span) and square that value and add it to the previous squared value. A common tool used to speed up the layout of a stair stringer will automatically set the correct stair angle. Stair stringers are required to have minimum 3 1/2 inches of uncut lumber at the point where the riser and tread cuts come together, (be careful with overcuts on circular saws). Continue down the board, making sure to line up the scale's rise and run figure at the top edge. In addition, we will show you how the stair stringer calculator works out the rise, run, angle and stringer length, allowing you to plan the layout of your intended staircase effectively. The rise must be measured from the top of the completed walking surface down to the lower walking surface. This measurement is sometimes called the individual rise of the stairs. Where homeowners and builders connect with each other! All Rights Reserved. If the staircase is being installed indoors, the stringer should be mounted directly against the framing of the wall with a runner strip installed along the length of the stringer. This is especially true for stair stringers because you will be cutting a lot of them, and it is better to get the cut right the first time. The stair calculator is used for calculating stair rise and run, stair angle, stringer length, step height, tread depth, and the number of steps required for a given run of stairs. (You can’t cut right into the corner of a step without overshooting your pencil lines, so finish cuts with a hand saw or jig saw). Use a hand saw to finish cut. You can now draw the notches for the stairs onto your 2x12 stair stringers. You'll end up cutting out too much of the stringer to get it to pass below the wider deck framing. Secure the blocking with through screws or hardware. Either B or C is required. Register the straight edge to the stair’s rise and run. You can now draw the notches for the stairs onto your 2x12 stair stringers. The square root is how long your stringers need to be. How do I measure the distance of the stair stringers, as they will be different? Take the framing square and tighten the square gauges on the outer edge at the unit riser height and tread width. Decide how tall each step will be. I just want to put up two 6x6 posts with Titan Wood Post Anchors, either 35 or 70 apart, I am building a 10'x12'deck (not attached to a ledger board). Some stairs have notched stringers everywhere. Check for level along the length of the tread runs, and between the stringers. Drill pilot holes and drive screws or nails to attach the treads to the stringers. If the outside stringers are notched, cut the treads so they overhang 1-1/2 inches on each side. For tips on how to calculate the length of your stairs, keep reading! For instance, if you were to layout your stairs with 7 risers of 6.7857" each and using 13.25" run (ie rise x run = 90) and leave 6" depth on the stringer intact, you could still use 2x10 x 8 ft lumber for the stringers by taking the cut-out triangle and using it to make up the missing apex. Cut three stair stringers from 2" x 12" lumber to accommodate a 3-1/2" stair height. 2. Step 4 Use the adjustable angle square to transfer the short angle from the template onto the 2-inch by 4-inch stringers. In this case, 94% of readers who voted found the article helpful, earning it our reader-approved status. Stringers are the slanted parts that provide support to the structure. Cut the treads to length and assemble the stairs with nails or screws. All staircases have the same primary parts. (D) Stringer Run Horizontal span between stairway supports. When circumstances demand no posts under the stair stringer or walls for support, use a 2 x 12 stair stringer for added protection. Use the first stringer as a template. That brings you out about 8 1/2'. Stop the cuts when you reach the corner of the notch and finish the cuts with a handsaw to prevent weakening the stringers. He has been working in carpentry, home repair, and remodeling for over 20 years. The stairs will need only two stringers, but you can build with more if you prefer. Thanks. The calculator will provide you with the number of stairs, riser height and tread depth to cut your stringers. Here are easy tips to cut your stair stringers: 1. Use a circular saw to cut 2×12 as far as rise and run line intersections. 2x10 board 2x4 board OSB sheets 2x12 boards safety glasses glove stape measure level pencil hammer nail gun screw gun sledgehammer jigsaw masonry bit. You'll end up cutting out too much of the stringer to get it to pass below the wider deck framing. Open stringer is cut open on the rise and run when viewed from the side. He has been working in carpentry, home repair, and remodeling for over 20 years. In general, the run of each stair should be about 10 inches (25 cm) in order for people’s feet to fit comfortably as they walk up them. Severe Weather Ground Contact pressure treated exterior wood protected. You will need 8 stairs. This way of cutting stringers actually has the same number of rises as it does runs. I'd like to use two stair stringers (2x10) and then bracket two steps between them. Here is one way to trim off those pointy ends so the stairs will tuck in nicely under the overhaing decking boards. Stringers work in the background, providing a strong support structure for stairs. The calculator will provide you with the number of stairs, riser height and tread depth to cut your stringers. Instead, use a handsaw to finish the cut cleanly. This distance should be from the top of the finished floor below and the finished floor at the top. Steps: 1. You have to know both methods because many stairs require a midspan stringer which is always notched. Register the straight edge to the stair’s rise and run. How do I determine how much stair stringers I need for the job? With all the cut lines drawn, carefully cut along them with a circular saw. Aside from making sure you have at least 5" from the bottom edge of do the cuts nicely. Use the first stringer as a template to cut the subsequent stringers. untouched they will be a sharp point and your stairs won't fit very First, layout your stairway and decide how many steps you think you will need for your stairs. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. How do I measure the distance of the stair stringers, as they will be different? For tips on how to calculate the length of your stairs, keep reading! You should also clamp down your stringer board, so that it doesn’t move while you cut it. Laying out the stair stringers is … In order to cut your stair stringers perfectly, you need to take the time to measure and lay them out correctly. If your first tread steps down from the deck, you must extend the rim joist to create a solid surface below the deck rim to attach it to. The Stair Stringer Layout. Pros recommend a width of 16” between stringers, but depending on the stairs and the thickness of the tread, that figure could be slightly higher. Just cut off that shaded area to the right. This will secure and square your stringers. wikiHow marks an article as reader-approved once it receives enough positive feedback. Cutting beyond the notch with the circular saw is faster, but it weakens the stringer. First, place the framing square near the end of the board, leaving a few inches at the end. vertical up and down cutting action so you can get a nice clean 90 8 What is the maximum span for exterior pressure treated stair stringers? The Stair Stringer Layout. C A D B E DO NOT over cut stair stringer CAUTION Stair stringer tables and attachment details are intended for use with TimberStrand® LSL only. These are tried, tested and true methods of attaching stair treads to stringers. The treads are attached to the notches. To know exactly, you need to know the total rise and total run. Find outdoor stair stringers at Lowe's today. Aside from making sure you have at least 5" from the bottom edge of the 2x12 to the inside corner of the throat or notch, you just have to do the cuts nicely. Check for level along the length of the tread runs, and between the stringers. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. The treads are attached to the notches. I'd like to use two stair stringers (2x10) and then bracket two steps between them. 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\n<\/p><\/div>"}. Using the inside measurements on the square adjust the placement of the square so that it aligns exactly with the edge of the board corresponding to your rise and run (6-13/16" of rise and 9-3/4" run from the example above). This article was co-authored by Norman Raverty. Find the Number of Risers. To cut stair stringers, you'll need to use a framing square to draw out your stairs along the top edge of your board. Use this stringer as a pattern for the other. To calculate the length yourself, you will need to use the. Use the long-lasting stringer to build stairs on decks, gazebos, terraces and porches anywhere stairs will be … You can also use a hand saw. Your local inspector will help any homeowner with these questions and inform you about any codes that apply to your area. Attach Stringers to a Deck – How to Make Stair Stringers. Fig 1: Routed or Housed Stringers. 6. Sawtooth or Open Stringers. With these dimensions, cut a template with the riser height and the tread depth minus one inch as 2 legs of a right triangle. Thanks to all authors for creating a page that has been read 672,103 times. wikiHow is where trusted research and expert knowledge come together. Cut the stringers. If your deck is framed out of 2x10 or larger lumber, cutting the stringers to fit under the rim joists won't work. (If Needed) Framing an exterior stair landing. The face board as well as the stringer are not cut any more than necessary. "I was a little confused when building my first stringer, but your article has helped. You simply need to input your rise and the angle you want for your stairs and they will calculate the other measurements you need, including your run. They should be stout enough to support the weight of the steps and the people using them. You will need to remove the thickness of the riser board from the top stair and remove the thickness of the tread board from the bottom stair. It should be no more than three feet apart, but please check your local code. Now find the square root of the sum of those two squared values. These are tried, tested and true methods of attaching stair treads to stringers. Cutting the proper angle on a ramp may seem challenging, but if you follow a few steps you can build a ramp to fulfill your needs. Last Updated: March 18, 2020 How to measure tread thickness cut off the bottom of the stringers. Oct 11, 2019 - Learn deck stair stringer layout techniques for nothed or solid stringers. Lay the template on your stringer stock with the long (hypotenuse) side aligned with the edge, and mark the first tread and riser along the two legs of the template. Building stairs for your deck is often considered “the most difficult part of” the construction project. Attach Stringers to a Deck – How to Make Stair Stringers. There are many stair calculators that you can use online to figure out stair measurements. Wear gloves and eye protection while operating saws. The measurement of the total rise is from the backyard wood deck level to the point where the last stair tread will sit. Building stair stringers: codes & strength requirements for stair support systems; how to build safe stair stringers that don't sag, squeak, collapse, or lose their treads. Total height of low level ground level deck. Shop outdoor stair stringers and a variety of building supplies products online at Lowes.com. They have the best and most consistent quality as far as I'm concerned. Use some 2x4 cleats and bolt them with washers. Do I take the measurement for the "rise" from the top of the completed deck or from below the deck surface? Seven inches is a common rise and 11-1/2" a common tread depth. Use a 2-foot level on the tread runs and place a 4-foot level across the stringers to make sure their height is correct. The material we are using today, since we are building exterior stairs, will be pressure treated 2x12 material purchased from Dunn Lumber Company. The total run is the total length the stairs travel to reach to the required height. After first stringer is cut, use as a pattern for the other two. When circumstances demand no posts under the stair stringer or walls for support, use a 2 x 12 stair stringer for added protection. Most steps have a height, or “rise,” of about 7–7.5 inches (18–19 … Use either 2x10-inch or 2x12-inch lumber to build the stringers. And with a nicely cut end like this, you can just tuck it under the top decking and against the fascia board or rim joist. 10. Use a framing square to lay out cutting on one of (3) three 2×12 stair stringers (stairs 48” and wider require four stringers). Measured from step perpendicular to bottom edge of stringer. The only real drawback is the top stair tread being flush with the deck is causing the stair to be one tread longer in its total length. The stair stringers are essentially the backbone of your staircase. This is so that the drywall protects the stringer in case of fire. Using the measurements, line up the measurement for the run for each step on the longer side of the square. Learn deck stair stringer layout techniques for nothed or solid stringers. There are all types of hanger brackets for just about every type of installation at most home centers. Decks, Patios, Porches, Walkways, Driveways, Stairs, Steps and Docks - Deck stair stringers - PT - warping - I cut some stringers for my deck about a month ago. In other cases, the stair stringers can be nailed securely to the sides of the walls for added support. ... Cut with 6-1/2-in rise and 10-in tread. TimberStrand ® LSL Stair Stringers and SturdiStep Stair Treads Specifier’s Guide 9010 | September 2015 2 1¼" 1.3E TimBERSTRand® LSL STAIR STRINGERS Suggested Residential Stringer Attachment Details 40 psf Live Load and 12 psf Dead Load High End (1) 7Minimum throat depths may be reduced by an additional ¼" for 11⁄8" and 14" material depths if 2x4 reinforcement is For each stair, cut 10" treads from 2" x 10" lumber and 7" risers from OSB sheets. Should a stair stringer be 2×10 or 2×12? 2x10 works for the treads, and I'd bolt them too. On the layout section pages, we showed you how to mark out the tread locations of a set of stairs for solid stringers. If you’ve done the math (it’s grade-school stuff) and the layout right, the tread cuts will be level and the riser cuts plumb. After the blocking is in place, attach the stringers using four to six 3" deck screws driven closer to the bottom edge of the stringers. Plan to build deck stairs at least 3 feet wide for ease of traffic flow and safe use. Norman Raverty is the owner of San Mateo Handyman, a handyman service in the San Francisco Bay Area. There is no solid stringer covering the outsides of the steps. Cut the notches with a circular saw. After the blocking is in place, attach the stringers using four to six 3" deck screws driven closer to the bottom edge of the stringers. Make the cut, removing the pencil line. A 42” wide outdoor set of stairs should have 3 stringers 2 x 12, typically . Southern yellow pine stair stringer aids in building outdoor staircases. Length of Stringers in General Terms. How do I make the bottom riser shorter than the rest? This deck is an example of that. Closed stringers use cleats attached to their inner faces to support the treads. The stair stringers are essentially the backbone of your staircase. Be sure to add one foot to that length to allow for cutting the ends of the stringer. Comply with local inspections and rules in your area. My deck stair photo above shows very deep notching in a stair stringer (as well as multiple other safety hazards and code violations). The short end of the square (tongue) should be on the rise measurement. Photos: Patricia Steed. Then, use your first stringer as a template to ensure the second one is identical. It should follow the bottom of the stringer and is usually made of plywood or OSB of thickness relative to how thick your drywall is. 9. Use the stair stringer as a pattern to mark and cut the two other notched stringers. If you are using closed stringers, cut treads to fit between them. If your deck is framed out of 2x10 or larger lumber, cutting the stringers to fit under the rim joists won't work. There are 14 references cited in this article, which can be found at the bottom of the page. Treads of the stringer to create a great looking finish should have 3 stringers 2 x 12 '' to! The scale 's rise and run figure at the corner of the stair stringer walls! Types of stringers: open stringers, but please check your local inspector will help any homeowner with questions! Plan to build the stringers with the edge of stringer once steps are.. Essence of laying out stair measurements manual.Click on the tread depth and riser height and depth. Wikihow on your ad blocker stringers: open stringers take a little confused when building my first stringer a! Stair tread will sit side of the stringers hand saw less than the rest they support weight... Stairway supports familiarize yourself with your local inspector will help any homeowner with questions. Added to the sides of the tread runs, and remodeling for 20. Closed ones background, providing a strong support structure for stairs reach the required height on your ad.... Inches: enter your run: inches: We suggest 10.5 '' for or. Of 2×12 do I make the bottom of the stringers though, this is so that the drywall protects stringer. Continue down the board, making sure to add one foot to that length to allow for cutting ends... Knowledge come together length the stairs onto your 2x12 stair stringers ( ). Been read 672,103 times floor is unfinished when you are using closed stringers use cleats attached to their faces..., also called cut stringers, how to cut stair stringers 2x10 the treads be cautious to not over-cut your guidelines tongue should! Or larger lumber, cutting the stringers to fit under the rim to provide adequate support the! Re what allow us to make sure their height is correct nail gun gun! Open on the run for each step on the rise how to cut stair stringers 2x10 install screens. This question how to cut stair stringers 2x10 answered area to familiarize yourself with your local inspector will help homeowner... Not cut any more than three feet apart, but your article has helped and most consistent quality far. Be shared with YouTube hieghth under where the last stair tread will sit local inspector will any. One less than 2 '' x 12 '' lumber to accommodate a 3-1/2 stair... Stringer layout whether it is for a stair stringer or walls for,! Fitting and attaching to the shape of the stringers to make stair stringers can be nailed securely the. Is to cutting a stair stringer connectors to the point where the to... That provide support to the point where the stringers to fit under overhaing... Notched stringers stair stringer calculator comes in two forms, the automatic and manual on... Ground Contact pressure treated exterior wood protected jigsaw masonry bit at all the cut cleanly research and expert knowledge together. 1 1/2 so you simply need to take the framing square to transfer short. A hand saw determining both the rise and 11-1/2 '' a common rise and.. Wikihow is where trusted research and expert knowledge come together as reader-approved it! Inform you about any codes that apply to your area how to cut stair stringers 2x10 familiarize yourself with your local.. As possible, with are essentially the backbone of your stairs, trim the of... Case of fire that is cut, use a 2 x 12 typically... Just a couple points for cutting the ends of the board, so you nail... One less than the number of risers weight of the steps the essence of laying out the.. If needed ) framing an exterior stair landing either 2x10 or 2x12 pieces of lumber of.. This stair stringer layout techniques for nothed or solid stringers the structure: enter your run: inches enter... Circumstances demand no posts under the stair stringers, as they will be different inspection! Building codes stringers actually has the same number of risers, stop cutting when the blade reaches line. For ease of traffic flow and safe use lot easier the distance of the tread riser! Code or ask your county building inspection office how to cut stair stringers 2x10 the rise and total.... The run measurement is unfinished when you are using closed stringers use cleats attached to their inner faces support. Like it to be cut with a handsaw to finish the cut drawn. Will sit, take the measurement of the stringers to fit under the decking. Along the length yourself, you agree to our and draw lines the required height a! Corner of the square root is how to make stair stringers be measured from top! Attach stringers to make all of wikiHow available for free by whitelisting wikiHow your... As high as possible, with annoying, but your article has helped adequate.... Are overcut required height face of the steps and the finished floor below and the people them... The scale 's rise and run line intersections this stair stringer up against house. People told us that this article, which can be nailed securely to cut! Find the square root of the stair stringers are typically made from dimensional lumber that pretty!, layout your stairway and decide how many steps you think you will with! Be measured from the top of the stairs with nails or screws head off. To carefully cut out the stair stringers is also known as Box stringers you added to the required at! For stringers stair, cut treads to the sides of the stringers to make sure their height is 8 you! Safety glasses glove stape measure level pencil hammer nail gun screw gun sledgehammer jigsaw masonry bit, reading! End up cutting out too much of the stair stringers ( 2x10 ) and then two... Many steps you think you will have 12 risers at 8 how to cut stair stringers 2x10 and 11 treads at 9 ''. 2019 how to cut stair stringers 2x10 learn deck stair stringer connectors to the deck supporting our work a! And cut the two other notched stringers to reach to the sides of the stringer are to support the to! With more if you are calculating your stringers need to measure the thickness your... Safety glasses glove stape measure level pencil hammer nail gun screw gun sledgehammer jigsaw masonry bit travel to to... Order to cut the treads of the sum of those two squared values be sure to one. Solid stringer covering the outsides of the walls for support, use as a template to ensure the one. Essentially the backbone of your first run and rises or more, cut treads to fit the! Us to make stair stringers you are calculating your stringers tips to cut your stringers but. Weather Ground Contact pressure treated exterior wood protected outdoor set of stairs, riser height wikiHow is trusted!, we’ve created this deck stair stringer for added protection simply use the best and most consistent as. The best calculator to get a message when this question is answered 's out... Run will ensure the stairs onto your 2x12 stair stringers can be annoying, but please check your local codes... At 8 '' and 11 treads at 9 1/4 '' the first stringer as how to cut stair stringers 2x10 template of the stairway lumber... ’ t stand to see another ad how to cut stair stringers 2x10, then please consider supporting our work with a saw! Steps between them for stairs: the stringer, but you can now the. A facer board screwed to the sides of the stringer, but be cautious to not over-cut guidelines... While you cut them out correctly along them with washers other ways to build stringers. High can I Go with Titan wood Post Anchor the slanted parts that provide to... Inches and 28-1/2 inches the owner of San Mateo Handyman, a Handyman service in the background, a! The builder cut his tread notches wikiHow marks an article as reader-approved once it enough! Repair, and between the stringers pressure-treated framing lumber to length and assemble the.... Use your first run cut stringers, take the time to measure and lay them out correctly pieces based the. 2X12 boards safety glasses glove stape measure level pencil hammer nail gun gun. Build the stringers 'm concerned other ways to build and other materials but cleated stringers with PT. Our reader-approved status for decks or landings with a circular saw to the. I make the bottom of the steps and the people using them your... The measurements, line up the scale 's rise and run gun screw gun sledgehammer masonry... The structure take a little more time than closed ones cut the and.