Ramp Buyer's Guide
Get accurate measurements, don't guess.
How to Measure for a Ramp Wheelchair & Scooter
The incline chart below will help calculate the length of ramp needed for most situations and settings. However, keep in mind the ADA recommends a 3:12 slope which means for every 3" of vertical rise you are required to have at least one foot of ramp (14.5° incline). And this is for loading unoccupied wheelchairs/scooters (unoccupied means nobody is sitting in the wheelchair/scooter while it navigates up the ramp).
Consult your equipment's owner guide to see what degree of incline is recommended. A typical Power Wheelchair recommended incline capability is about 9.5° with the patient in the chair or scooter and about 14.5° unloaded. Pushing a manual wheelchair can be difficult or easy depending on: ramp length + patient weight.
Easy calculation: Divide the rise in inches by 3. (24 inch rise requires an 8 foot ramp.)
(all measurements in degrees)
Ramp incline chart:
Single-Fold Aluminum Ramps
Triple-Fold Aluminum Ramps