What is a comfortable stair riser height?

Most codes cap risers at 7.75 in; 7–7.5 in feels comfortable for most stairs.

What tread depth should I use?

Use at least 10 in of tread depth; deeper treads are easier to climb.

Enter the total vertical rise to calculate the number of steps, the rise per step, and the total run of your staircase.

Estimates only. Round up and buy a little extra to account for waste, spills, and breakage.

Steps = round(total rise ÷ target riser). Riser = total rise ÷ steps. Run = (steps − 1) × tread depth.

What is a comfortable stair riser height?: Most codes cap risers at 7.75 in; 7–7.5 in feels comfortable for most stairs.
What tread depth should I use?: Use at least 10 in of tread depth; deeper treads are easier to climb.

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