The wheelchair ramp length chart shows the needed ramp length to a given rise in inches. ADA compliance requires a 1:12 ratio in the rise (distance from the top step/landing to the ground) and the length of the ramp. This equals a 4.8 degree incline. Businesses must be ADA compliant but if the wheelchair ramp is for personal use then you can increase or decrease the incline as deem necessary.
CAUTION! At any incline, use ramp only with a qualified helper.
CAUTION! Refer to your equipment’s (wheelchair or scooter) User Guide for exact recommendations concerning acceptable usage and allowable slope.