Stair Stringer Lumber Size

Quickstep 1 step aluminum deck stair stringer.
Stair stringer lumber size. In a set of stairs 36 inches wide there are typically three stringers one on each end and one in the middle. The lumber is pressure treated protecting it from termites and rot. Tired of making multiple trips to the store. Taller steps can be difficult to climb while shorter ones make ascending and descending feel awkward and may present a tripping hazard.
Less than 2 of lumber was left in this stair stringer 2x after the builder cut his tread notches. Notched stair stringers are widely used and are acceptable if sufficient supporting strength is provided. My deck stair photo at left shows very deep notching in a stair stringer as well as multiple other safety hazards and code violations. Severe weather 5 step pressure treated southern yellow pine deck stair stringer.
For pricing and availability. Most steps have a height or rise of about 7 7 5 inches 18 19 cm. 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. Stringers cut to the proper dimensions are essential for building a solid set of stairs.
Decide how tall each step will be. It is used to determine the length of 2x12 material required to build the stair stringer. The stringer length is the tip to tip length of the cut stringer.