Staircase Cut Out

You use a framing square to draw the stair s notches on the stringer then you cut them out.
Staircase cut out. He shows you how it s done with tips thrown in along the way to make this easy. The strength of the stringer weakens if the tread and riser lines are overcut. Use common joist hangers to attach the stringer securely to the upper tier. With these dimensions cut a template with the riser height and the tread depth minus one inch as 2 legs of a right triangle.
They are cut from 2x12s or larger material the uncut portion of the stringer should not be less than 5 inches 127 mm see diagrams below. First determine the tread depth and riser height. Pre cut stair stringers are available in a variety of sizes to make this part of the project a bit easier. 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.
In a set of stairs 36 inches wide there are typically three stringers one on each end and one in the middle. With all the cut lines drawn carefully cut along them with a circular saw. Stringer the stringer is the structural part of a set of stairs. Expert carpenter shows you how to measure out mark and cut a stair stringer.
Cut a notch along the bottom of each stringer for space to position it over a pressure treated 2 in. Seven inches is a common rise and 11 1 2 a common tread depth. Cut a triangle to use as a template for each step.