Wheelchair Ramp Calculator
Determine Minimum Ramp Length
Recommended Ramp Lengths
| Slope Ratio | Angle (approx.) | Minimum Ramp Length | ADA Notes |
|---|
ADA recommends 1:12 slope (4.8°) for most public & commercial use.
Longer gentler slopes are easier & safer for wheelchair users.
For modular ramps, add platforms every 30 ft of ramp run (ADA guideline).