Staircase Cut Out

With these dimensions cut a template with the riser height and the tread depth minus one inch as 2 legs of a right triangle.

Staircase cut out.

First determine the tread depth and riser height. The essence of laying out stair stringers is straightforward. 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 the notches at all the tread riser intersections stop cutting when the blade reaches the line.

Cut a triangle to use as a template for each step. Cut a notch along the bottom of each stringer for space to position it over a pressure treated 2 in. With all the cut lines drawn carefully cut along them with a circular saw. 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. Seven inches is a common rise and 11 1 2 a common tread depth. Expert carpenter shows you how to measure out mark and cut a stair stringer. Use the first stringer as a template to cut the subsequent stringers.

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. Stringer the stringer is the structural part of a set of stairs. You use a framing square to draw the stair s notches on the stringer then you cut them out.