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Ramps designed to be installed inside or outside of buildings or used with vehicles and intended to facilitate access by people who use wheelchairs or scooters. Wheelchair ramps are usually constructed with standardized minimum widths, maximum slopes, maximum lengths, weight-bearing capacity; the longer the ramp, the lesser the slope should be. Wheelchair ramps are usually made of aluminum, concrete, galvanized steel, or wood, and have non-skid surfaces. Some ramps include hand rails.
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