Every number here is a working estimate to check with your building authority. Whoever prints this page takes responsibility for what is in it.
Lessons / Stairs, landings and handrails
Guess first
Stringer depth and spacing
Show a hint
A 2x10 notched for a 7 in rise, with too little wood left behind the cut.
Every number here is a working estimate. Check it with your building authority.Turn JavaScript on to work the lesson. The drawing shows how it starts.
The rule this lesson teaches
Leave 90 mm (3 1/2 in) behind each notch and 235 mm (9 1/4 in) overall; stringers 900 mm (35 7/16 in) apart, or 1.2 m (47 3/16 in) with riser boards.