![]() ![]() Furthermore, edge protection should be installed that doesn't allow a 4"-diameter ball to roll off the ramp. There should be a minimum distance of 9" between the sets of handrails to prevent entrapment. These handrails should be 34-38" high, at a consistent height, with another set of rails at a height of 20-28" near children's play areas. HandrailsĬontinuous handrails are required on each side of a ramp with a rise greater than 6". If the ramp has vertical edge protection, consider adding drainage holes (less than 4" in width) to allow the water to drain. For drainage purposes, landings can have a maximum 1:48 slope from side to side. It's important to design ramp landings to allow for adequate water drainage. However, if this isn't possible, the door should be designed to open in the opposite direction to ensure a clear space for the landing. When there is a door at the top of the ramp, the landing space should be positioned so that it's clear of the door swing space. Ramp Landings with an Overlapping Doorway Built-up ramps (including landings) cannot cut into parking spaces, access aisles, or vehicle traffic lanes. There must be a level landing at the top and bottom of each ramp run that is at least 60" long and the same width as the ramp run. For rises that would require a very long ramp with multiple ramp runs, you might benefit from an elevator or vertical platform lift. However, people using manual wheelchairs may become fatigued if the ramp is very long. There is no maximum length for a wheelchair access ramp. However, the handrail or handrail extension must not cut into the minimum landing space. The handrail can change direction with the ramp. Where the ramps change direction, there must be intermediate landings that are at least 60" long and the same width as the ramp. Otherwise, you might opt for an elevator or vertical platform lift instead. If the total rise is greater than 30 inches, a series of rises can be used. The same maximum cross slope applies to landings for the purpose of allowing water to drain. ADA wheelchair ramp requirements allow a maximum cross slope of 1:48. The cross slope is the slope of a ramp run from side to side. If space limitations prohibit a maximum slope of 1:12, a ramp with a 6" rise can have a maximum slope of 1:10 and a ramp with a 3" rise can have a maximum slope of 1:8. ![]() Exceptions to the Maximum Slope Ruleįor very short ramps, it's possible to have a steeper slope. That means that the ramp run cannot have a rise greater than one foot in height for every 12 feet of horizontal length. Wheelchair ramps must have a maximum rise of 30" per ramp run and a slope of no more than 1:12. This width is necessary for the safe passage of manual wheelchairs, power wheelchairs, and mobility scooters. Ramps in certain facilities must have detectable warnings.ĪDA Wheelchair Ramp Standards Minimum WidthĪccording to ADA ramp requirements, wheelchair ramps must have a minimum clear width of 36" between the leading edges of handrails. Handrails should be 34-38" high with another rail positioned at a height of 20-28" in children's play areas.Įdge protection should be added that doesn't let a 4"-diameter ball run off the ramp.Ĭurb ramps can be perpendicular or diagonal and typically have side flares. There must be handrails on both sides of a wheelchair ramp with a rise greater than 6". Landings must be at least 60" long and the same width as the ramp run. Where a ramp has multiple runs, there must be intermediate landings. ![]() A maximum cross slope of 1:48 for the ramp run and landings. ![]()
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