Stair Stringer Layout Tool

Units

Deck or floor-to-floor. Inches accept fractions such as 36 1/2.

Use 0 for open risers. Shown on the layout, not subtracted from rise.

For reference only. Construction must follow local code and a qualified professional. This page does not certify stairs, size lumber for loads, or judge a pass or fail against the IRC.

What you get

This stair stringer layout tool turns a finished rise and an available run (or a tread count) into a cut list and a dimensioned stringer you can mark with a framing square. Numbers copy to your notes. Marking steps stay readable on a phone. The 1:1 tiled PDF is the paid print template.

Need the square sequence in more detail? Read how to mark a board. Compare your rise and run to common IRC figures (hints only). Start from a worked calculator stair stringer layout diagram if you want a known height first.