Plan Stair Geometry
Divide total rise into equal step heights under maximum height wey you enter.
Your numbers
Number of step rises
Geometry sketch only, no be building-code check. Headroom, landings, guards and local accessibility rules no dey included.
Compare scenarios
You fit keep up to three snapshots for this tab. Loading one go replace the present inputs.
Formula
Use N = ceil(H/r) and T = N−1. H na total rise and r na di preferred maximum riser height for di same unit. ceil dey round up; T na treads before di upper landing. Actual riser height na H/N.
Divide total rise into equal step heights under maximum height wey you enter.
Example wey show the calculation
- All the rise together (mm)
- 2800
- Highest step rise wey you prefer (mm)
- 180
- Horizontal tread depth (mm)
- 250
- Number of step rises
- 16
- Step rise wey calculation give
- 175 mm
- Treads before top landing
- 15
- Straight distance covered horizontally
- 3,750 mm
Where e fit work and limits
Geometry sketch only, no be building-code check. Headroom, landings, guards and local accessibility rules no dey included.
We check inputs for missing values and allowed ranges. Result wey pass the finite numeric range no go show. Rounding affect wetin display, while calculation use the model numeric precision.
Check your units and assumptions before you rely on result. Changing label no convert currency or physical unit.
Version of di formula: fd4c497d06d8 · Example don get check: