How to Determine Proper Wheelchair Ramp Length

 

To determine the proper length of a wheelchair ramp:
  1. Measure:
    • The total useable width of the area
    • The total vertical rise that you are trying to overcome
    • The available distance going straight out from the highest point
  2. Look in your power wheelchair or scooter owner’s manual for its maximum incline
  3. Use our mobility ramp calculator to determine the best wheelchair ramp length for your use
  4. Search our wide selection of discounted wheelchair ramps to find one that suits your needs! We have the best and most affordable portable wheelchair ramps, modular handicap access ramps, solid & threshold ramps, and wheelchair van ramps!

See the ADA (Americans with Disabilities Act) requirements below for an explanation of the mobility ramp calculator outputs.

ramp distance, length, and vertical rise

How to use our Mobility Ramp Calculator:

 

ADA Requirements:

Residential Unoccupied Use:
For residential use when nobody is sitting in the wheelchair or scooter while it climbs the ramp, 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 degrees incline).

Example: 24 inches of rise requires an 8 foot ramp minimum (24 divided by 3).

Residential Occupied Use:
For residential use when somebody is sitting in the wheelchair or scooter while it climbs the ramp, ADA recommends a 2:12 slope, which means every 2" of vertical rise requires one foot of ramp (9.5 degrees of incline).

Example: 24 inches of rise requires a 12 foot ramp minimum (24 divided by 2).

Commercial Occupied Use:
For commercial use when somebody is sitting in the wheelchair or scooter while it climbs the ramp, ADA recommends a 1:12 slope, which means every 1" of vertical rise requires one foot of ramp (5 degrees of incline).

Example: 24 inches of rise requires a 24 foot ramp minimum (24 divided by 1).

Supplementary ADA Resources:

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