Notched stair stringers are widely used and are acceptable if sufficient supporting strength is provided.
Stair stringer lumber size.
Severe weather 5 step pressure treated southern yellow pine deck stair stringer.
My deck stair photo at left shows very deep notching in a stair stringer as well as multiple other safety hazards and code violations.
In a set of stairs 36 inches wide there are typically three stringers one on each end and one in the middle.
Stringers are cut from framing lumber 2 by 8 2 by 10 in the profile of the stair.
The lumber is pressure treated protecting it from termites and rot.
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.
Most steps have a height or rise of about 7 7 5 inches 18 19 cm.
Ideal for a variety of applications including decks docks and other outdoor projects where lumber is exposed to the elements.
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.
Taller steps can be difficult to climb while shorter ones make ascending and descending feel awkward and may present a tripping hazard.
Tired of making multiple trips to the store.
Decide how tall each step will be.
Stringers cut to the proper dimensions are essential for building a solid set of stairs.
Risers are attached to the vertical cuts and treads are nailed to the horizontal cuts.