Ada ramp specifications require a 1 12 ramp slope ratio which equals 4 8 degrees slope or one foot of wheelchair ramp for each inch of rise.
Electric wheelchair ramp slope.
Divide rise by the run of ramp.
Residential applications can use a 2 12 slope ratio if space is an issue but only if an assistant is present to help push the wheelchair or to help a person walking on the ramp.
A 24 rise requires a minimum ramp length of 24 288 24 divided by 1.
For commercial public access a 1 12 ratio is required check your local codes.
Modular ramps modular ramps are built for both home and commercial access.
Run is not the length of the ramp.
Maximum slope for power chairs should be 1 5 rise to 12 length 7 1 degree angle.
Disability systems recommends a 1 12 slope on most applications.
Learn the correct measurements of a properly constructed wheelchair ramp.
Ada guidelines require a minimum 5 x 5 flat unobstructed area at the top and bottom of the ramp.
Please call our wheelchair ramp specialists today at 1 855 638 7554 we ll be glad to provide you with all the information you need to get started on your project.
To determine the percent of grade.
Wheelchair ramp slope and percent of grade information percent of grade formula.
For instance a 30 inch rise requires a 30 foot handicap wheelchair ramp.
6 rise 52 ramp run 115 or 11 5 grade.