Stair Dimensions
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Stair Dimensions
Calculate geometry for a chosen stair layout, without code assessment.
UNDERSTAND YOUR RESULT
How it works
Calculate geometry for a chosen stair layout, without code assessment.
THE CALCULATIONriser height = total rise / risers; run = (risers − 1) × tread
Using this calculator
Enter total vertical rise (cm), number of risers, tread depth (cm). riser height = total rise / risers; run = (risers − 1) × tread.
What to keep in mind
A quantity estimate using your measurements, not a structural design, building-code check or purchasing specification. Allow for real shapes, cutting and the product instructions.
Frequently asked questions
Are my entries saved?
No. Calculator inputs remain in the current page and are cleared when you reload or leave. The tools do not upload your entries.
Why are results rounded?
The display is rounded for readability. Calculations use unrounded intermediate values. An estimate should not be interpreted as an exact measurement.