Construction & Materials
Stairs Rise, Run & Stringer Calculator
Calculate the number of steps, rise, run and stringer length for a staircase.
Your inputs
Change any value to update the result instantly.
Number of steps
14 steps
Actual riser height
7.71 in
Total run
130 in
Stringer length
14.08 ft
Formula and working
steps = total rise ÷ rise per step; stringer = √(run² + rise²)
- 1
Collect the inputs
Total rise (floor to floor) = 108 in; Target riser height = 7.5 in; Tread depth (run per step) = 10 in
- 2
Apply the formula
steps = total rise ÷ rise per step; stringer = √(run² + rise²)
- 3
Result
Number of steps = 14 steps
Frequently asked questions
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
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