METHOD
How it is calculated
Riser count rounds up; treads = risers−1 because the upper floor forms the final landing.
⌂ Home, building and energy
Stair dimensions calculator
Lay out equal risers for a simple straight staircase.
01
Your inputs
Starting values are an example. Replace them with your own.
Your inputs stay in your browser.
02
Your result
Enter your details and run the calculation.
TRACEABLE
Sources and validity
Basic arithmetic or geometry using the formula shown. Uses only your inputs.
How we maintain data ↗