Command Mobility Scooters: Call: 800 790 5769

RAMPS, CARRIERS AND LIFTS - Ramp Selection Guide

There are several factors you need to consider when it comes to wheelchair ramp selection,
They are: type, width, and length.

Ramp Type

There are basically two types of wheelchair ramps - permanent and portable. Wood or concrete ramps are more permanent structures with excellent stability and may be any length. They will cost as much as $150 per inch. Once put in place, a permanent ramp cannot be moved. Portable wheelchair ramps, like the ones we provide, are much more economical and versatile. You use it when and where you want. Portable ramps do have drawbacks. For example, they are less stable than permanent ramps. There is also a length limitation. When any ramp gets longer, it will weigh more and becomes less portable.

Ramp Width

Make sure your wheelchair or scooter fits within the ramp with some safety margin. If the ramp is to be used on the side door of your mini-size or full-size van, make sure you have enough door opening for the ramp (see our Frequently Asked Questions section on how to correctly measure door opening).

Ramp Length

The minimum ramp length at a given rise (distance between top of step and ground) is determined by the maximum allowable incline of your chair or scooter (usually listed in the warning section of the user's manual). Most power wheelchairs and scooters have a maximum allowable incline of 6-9 degrees. Use the calculator below to calculate ramp length:

Enter rise (inches)
Enter max. allowable incline (degrees)
Minimum ramp length (feet) =

Please note:

1. The maximum allowable incline of a wheelchair or scooter is based on an average weight of a person sitting in it. If you don't plan on riding on the ramp, the actual allowable incline would be larger, which means a shorter ramp may be safe to use.

2. Do not use the calculator if your wheelchair or scooter is modified and has different ground clearance. An example of such modification is RampVan.

For your reference, handicapped access for public buildings in the US has a maximum incline of 4.8 degrees for manual chairs and 7.1 degrees for power chairs per ADA (American Disability Act).

Need more help? Feel free to discuss your ramp needs with us: 1-800-790-5769
       Return to Ramps Page