Wheelchair Ramp Length Calculator. This slope ratio indicates that for every 14 metres across the length of the ramp, the slope height increases or decreases by 1 metre. The incline calculator is for calculation of rise and run only.
This however is not always practical or possible for portable ramps. The most often suggested slope for wheelchair ramps is a commercial occupied use ratio of 1:12, however, the slope can be reduced to suit older structures and narrower areas. The incline chart below will help calculate the length of ramp needed for most situations and settings.
Enter the rise or length of ramp to work out best gradient. We start you off with the ada standard ratio of 1:12, but we recommend you confirm with your local/city code. Provided that you have a rough idea of the length of the ramp you desire, enter the ramp length and then load height into the boxes below.
As indicated in as1428.1, the gradient of wheelchair ramps with lengths of over 1,900 milimetres should not exceed 1:14 and should not be less than 1:10. Most building codes still require a minimum slope of 1:12 and you can use our 1:12 calculator for these ramps. Length of ramp (mm) height of steps (mm) total height of step (s) to the top lip of any threshold (mm).
To establish the proper ramp length: Please refer to individual product pages for relevant application. Select the incline you desire.
Public and commercial properties we. Manual wheelchair users who are independent or who have an attendant with limited strength. How steep should wheelchair ramps be*.
The wheelchair ramp calculator determines the ramp length, defined as the level horizontal distance from the wall of the building to end of the ramp, and the slope length, defined as the distance from the bottom of the door to the end of the ramp. Our full range of wheelchair ramps, including folding wheelchair ramps and modular wheelchair ramps can be viewed here. Ada compliance requires a 1:12 slope ( or 1 foot of ramp for every 1 inch of vertical rise).
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