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Stair Calculator
Live
Floor-to-floor height
Preferred step height
Tread depth
For stringer count
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Design stairs from total rise. Computes step count, actual rise/run, stringer length, code compliance check (rise 4-7.75in, run 10-11in). Stringer boards and treads estimated.
How to Use
- 1Enter the total rise (floor-to-floor height in inches or cm)
- 2Enter your preferred riser height (default 7 inches) and tread depth (default 11 inches)
- 3Click Calculate to see step count, actual rise and run, total run, and stringer length
- 4Building code compliance is checked: rise 4–7.75 in, run 10–11 in
- 5Enter staircase width to get the number of stringer boards and treads needed
Features
- Total rise to step count, rise, run, stringer length
- Building code compliance check (rise 4–7.75 in, run 10–11 in)
- Comfort rule verification (rise + run = 17–18 in)
- Stringer boards and tread count from staircase width
- Inches/feet and mm/cm support
- 100% browser-based
Frequently Asked Questions
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