Stair Stringer Square

You use a framing square to draw the stair s notches on the stringer then you cut them out.
Stair stringer square. One of these tools will allow you to lay out consistent precise angles down the length of the board. The back tread for the top step had to be ripped down to fit the opening. Handy magazine shows you how to build basic stair stringers. A 42 wide outdoor set of stairs should have 3 stringers 2 x 12 typically.
Clamp the stair gauges to the carpenter s square. This allows you to make multiple copies of the same angle time and time again once you set them and screw them tight into your square that is. Hold up stair treads with this 3 step stair hold up stair treads with this 3 step stair stringer that meets the highest grading standards for strength and appearance. 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.
The above image shows drawing the top step run at 10 and the rise at 6 3 8. Get a carpenters framing square and if you have little buttons that clamp or screw onto the square even better. My gauges came with a ball bearing in the slot where. Use a framing square to trace the stair pattern on your stringer board.
As for the length of the stringers take the total height the stairs need to be and square that value. Use the narrow part of the square for clamping the riser gauge and the wider part for the 10 1 4 in. 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. Ideal for a variety of applications including decks docks and other outdoor projects where lumber is exposed to the elements.
Align the rise and run measurements on the square with the edge of the stringer. Notice that the stair stringer top step has a 9 run and the next step has a 10 run. Trace out the unit rise and unit run as shown by the measurements on the square. Lay out the stairs by drawing on the outside of the square sliding the square along until it meets the last mark to learn how to build steps.
This will create a stair stringer calculator. The lumber is pressure treated protecting it from termites and rot. Screw them onto a framing square once you know your rise and run such as for stair stringers.