Concrete Wheelchair Ramp Specifications

Specifications of ada require that the slope of a ramp should be one inch or lesser for every 12 inches of ramp run.

Concrete wheelchair ramp specifications.

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. Rise is the vertical elevation of a ramp. Soft loose surfaces and irregular surfaces that could impede wheelchair movement have to be avoided. Some areas require wider ramps.

All ramps shall have top and bottom landings as wide as the ramp itself and at least 60 inches. For instance a 30 inch rise requires a 30 foot handicap wheelchair ramp. The slope of a ramp is expressed as a rise to run ratio. Run is the horizontal distance.

Mark the ramp area using stakes and string. Ramps must be a minimum of 36 inches wide. Ada further specifies that the wheelchair ramp surfaces must be hard stable and regular. This means the ramp must be built at least 42 inches wide to allow for the 1 inch spacing between the handrail and any surface and the actual 1 inch handrail.

Ada guidelines require a minimum 5 x 5 flat unobstructed area at the top and bottom of the ramp. Wheelchair ramp building specs. Ada ramp specifications ramps may have a maximum slope of 1 12. Measure the area where the ramp is to be located.

How to build a concrete wheelchair ramp. An ada ramp is required to be 36 inches wide and cannot exceed a 1 12 slope.