Layout Stair Stringer (Part 1 - Treads & Risers) — Mark Stringers for Treads and Risers

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How to Measure Alternating Tread Stairs · Step 5 of 10

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Position a dimensional lumber board (e.g., a 2x10 or 2x12) across two or more saw horses. Begin marking from the right-hand side, which will be the bottom of the stringer where it contacts the first floor or ground. Use a framing square with stair gauges set to your calculated unit run (e.g., 10 inches) and unit rise (e.g., 7 1/2 inches). The thicker part of the square (body) represents the unit run, and the thinner part (tongue) represents the unit rise. Secure the gauges onto the square. Place the square on the board, ensuring the unit run and unit rise are correctly aligned. Mark the first tread and riser. Double-check these first two marks with a tape measure before proceeding. Slide the square along the board, marking each subsequent tread and riser until you reach the final step.

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less you're golden okay I'm going to give you a quick demonstration of how you're going to lay out a staircase and how you're going to actually make a Stringer you'll make one Stringer get it perfect and then you'll use that to duplicate and make your other stringers so we're going to use our little diagram of unit run and unit rise that we use all the time that I I showed you in the beginning and we'll use that as an example but you're going to start by laying your dimensional Lumber across say three or four saw horses and you start on the right hand side now the right hand side is going to be the bottom of your Stringer the part that goes into the first floor or the ground if it's a deck so remember that I always take and I write a big b on my Stringer so I know where the bottom is and if you look at this it makes perfect sense when you're laying it out because this is the way I've got it written with unit run and unit rise is exactly the way you would start and your unit run is the step so you know you're going to step step step so that being said we're going to take our straight edge and we're going to lay out the framing square on it now we have our clips now the most common dimensions for your unit run are going to be between 10 and 12 and common unit Rises between generally seven and nine depending on the code that is being used and depending on your local building department you'll need to find that out before you lay your stairs out because that will actually determine how many steps you have and what you can do so let's take our example where you're going to take we have that backwards remember because the body is my thick part which is what I step on and I use the tongue for my rise just like so we're going to lay it on the board and I'm going to take my 10 right here starting at one to ten and I'm going to put it at the edge of my board and then I'm going to clip that into place now I'm going to the other side for my rise and we want we're going to go with seven and a half seven and a half is a good number very typical so when I go to my seven and work it into the half and I'm going to clip that as well so now and adjust it make sure that it is dead on right there looks good that is off right there that's pretty good all right so now what we're going to do is we start with our first step going up the Stringer I place the board on the top and I will just pick a spot you want you don't want to be at the very end of the lumber because you're going…

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Layout Stair Stringer (Part 1 - Treads & Risers) — Mark Stringers for Treads and Risers

Advanced

2 hours

Part of project

How to Measure Alternating Tread Stairs · Step 5 of 10

Was this clip helpful?

In this video

Position a dimensional lumber board (e.g., a 2x10 or 2x12) across two or more saw horses. Begin marking from the right-hand side, which will be the bottom of the stringer where it contacts the first floor or ground. Use a framing square with stair gauges set to your calculated unit run (e.g., 10 inches) and unit rise (e.g., 7 1/2 inches). The thicker part of the square (body) represents the unit run, and the thinner part (tongue) represents the unit rise. Secure the gauges onto the square. Place the square on the board, ensuring the unit run and unit rise are correctly aligned. Mark the first tread and riser. Double-check these first two marks with a tape measure before proceeding. Slide the square along the board, marking each subsequent tread and riser until you reach the final step.

180 views5

Video Transcript

(2,501 characters)

Hide

less you're golden okay I'm going to give you a quick demonstration of how you're going to lay out a staircase and how you're going to actually make a Stringer you'll make one Stringer get it perfect and then you'll use that to duplicate and make your other stringers so we're going to use our little diagram of unit run and unit rise that we use all the time that I I showed you in the beginning and we'll use that as an example but you're going to start by laying your dimensional Lumber across say three or four saw horses and you start on the right hand side now the right hand side is going to be the bottom of your Stringer the part that goes into the first floor or the ground if it's a deck so remember that I always take and I write a big b on my Stringer so I know where the bottom is and if you look at this it makes perfect sense when you're laying it out because this is the way I've got it written with unit run and unit rise is exactly the way you would start and your unit run is the step so you know you're going to step step step so that being said we're going to take our straight edge and we're going to lay out the framing square on it now we have our clips now the most common dimensions for your unit run are going to be between 10 and 12 and common unit Rises between generally seven and nine depending on the code that is being used and depending on your local building department you'll need to find that out before you lay your stairs out because that will actually determine how many steps you have and what you can do so let's take our example where you're going to take we have that backwards remember because the body is my thick part which is what I step on and I use the tongue for my rise just like so we're going to lay it on the board and I'm going to take my 10 right here starting at one to ten and I'm going to put it at the edge of my board and then I'm going to clip that into place now I'm going to the other side for my rise and we want we're going to go with seven and a half seven and a half is a good number very typical so when I go to my seven and work it into the half and I'm going to clip that as well so now and adjust it make sure that it is dead on right there looks good that is off right there that's pretty good all right so now what we're going to do is we start with our first step going up the Stringer I place the board on the top and I will just pick a spot you want you don't want to be at the very end of the lumber because you're going…

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