Stair Stringer Length Calculator
Enter total rise and desired step dimensions to estimate stringer length and number of steps.
CalcSimpler Examples
- Total rise 2.8 m, step rise 0.18 m, run 0.25 m ⇒ 4.93 m (16 steps)
- Total rise 1.5 m, step rise 0.175 m, run 0.25 m ⇒ 2.75 m (9 steps)
FAQ
Why is step count rounded up?
Rounding up ensures the total rise is fully covered.
Can I use inches instead of meters?
Yes, use consistent units for all inputs to get a correct length.
Does it account for nosing?
No, nosing or overhangs must be added separately.
Additional Information
- Stringer length is measured along the slope from base to top.
- Step count is rounded up to meet or exceed the total rise.
CalcSimpler