Why? Because the landings serve as resting areas, the Americans with Disabilities Act determined that after 30 feet of continuous run, a resting area is needed. That means that the maximum length is 30 feet, so one additional platform landing is required for every additional 30 feet of ramp.
Number of Resting Platform Landingsįollowing the ADA ramp requirements, the maximum rise for a single ramp run is 30 inches. Landings provide a place for people with disabilities to rest and turn around if necessary. These landings should be at least as wide as the ramp and at least 60 inches long. Platform LandingsĪDA ramp requirements include landings at the top and bottom of the ramp.
Ramp WidthĪDA ramps must be at least 36 inches wide, which allows people using wheelchairs or other mobility devices to safely navigate the ramp.
To ensure that your ramp is not steeper than the 1:12 ratio, your ramp needs to be 40 feet long. For example, the door on your building is 40 inches above the ground. The ramp length is directly related to the height between the ground and the bottom of the door, along with the required slope. If you’re unsure about how to do the calculations, use the ramp slope calculator. The steepest slope that an ADA ramp can have is 1:12 which means for every inch of threshold rise, the ramp must be at least 12 inches (one foot) long.
