Stair Riser Calculator
Calculate stair rise and run dimensions
in
in
Formula
Risers = Total Rise / Ideal Height; Tread = 21 - Riser
The 7-11 rule: riser + tread ≈ 17-18 inches for comfort.
Examples
108" total rise
14 risers at 7.71", 13.29" treads.
Frequently Asked Questions
About Stair Riser
Calculate stair riser height and tread depth dimensions.