Ramp Calculation Chart

* Support Stands required for 14' - 20' lengths.  Support stands are strongly recommended for any portable ramp longer than 11 feet. We recommend placing a pair of support stands every 6-7 feet. The support stands easily attach to the portable ramp using bolts and nuts provided. No special tools are needed.

HOW LONG OF A RAMP SHOULD I BUY?

Generally Recommended Slope Angles:

5-degree:  This is Americans With Disabilities Act compliant – click here  for more information about Roll-A-Ramp and ADA

7-degree:  Manual wheelchair users who are independent or who have an attendant with limited strength

10-degree: Manual wheelchairs with a reasonably strong attendant

12-degree: Power wheelchairs or scooters and manual chairs with a strong attendant

15-degree: Restricted space, unoccupied loading/unloading

Determining the length of a ramp is not complicated

Determining Ramp Length:
Measure total rise (how many inches from lower level to upper level) and divide by the slope.

5-degree: Rise distance divided by 1

7-degree: Rise distance divided by 1.5

10-degree: Rise distance divided by 2

12-degree: Rise distance divided by 2.4

15-degree: Rise distance divided by 3

Example: For a desired slope of 7 degrees with a rise of 12″ (1 foot), 12/1.5 = 8 foot ramp