The essence of laying out stair stringers is straightforward.
Stair stringer square.
Use the narrow part of the square for clamping the riser gauge and the wider part for the 10 1 4 in.
Screw them onto a framing square once you know your rise and run such as for stair stringers.
A 42 wide outdoor set of stairs should have 3 stringers 2 x 12 typically.
Get a carpenters framing square and if you have little buttons that clamp or screw onto the square even better.
Trace out the unit rise and unit run as shown by the measurements on the square.
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 lumber is pressure treated protecting it from termites and rot.
Align the rise and run measurements on the square with the edge of the stringer.
The above image shows drawing the top step run at 10 and the rise at 6 3 8.
Ideal for a variety of applications including decks docks and other outdoor projects where lumber is exposed to the elements.
As for the length of the stringers take the total height the stairs need to be and square that value.
Measure 7 inches 18 cm from the center of the square on one arm to set the rise and 10 11 inches 25 28 cm on the other arm for the run.
My gauges came with a ball bearing in the slot where.
Clamp the stair gauges to the carpenter s square.
Notice that the stair stringer top step has a 9 run and the next step has a 10 run.
One of these tools will allow you to lay out consistent precise angles down the length of the board.
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.
Handy magazine shows you how to build basic stair stringers.
Use a framing square to trace the stair pattern on your stringer board.
This will establish the starting point for the stringer.
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.
This will create a stair stringer calculator.
The back tread for the top step had to be ripped down to fit the opening.