A wheelchair ramp is an inclined plane installed in addition to or instead of stairs. Ramps permit wheelchair users, as well as people pushing strollers, carts, or other wheeled objects, to more easily access a building. A wheelchair ramp can be permanent, semi-permanent or portable. Permanent ramps are designed to be bolted or cemented in place. Semi-permanent ramps rest on top of the ground or cement pad and are commonly used for the short term.