Signboard inside a museum indicating an accessibility feature.

Once in the main building or exhibit building, several accessibility standards used outside are also used inside. The accessible route must be of a stable, firm, and slip-resistant nature. Standards on appropriate widths, head clearances and protruding objects also need to be followed. Carpeting is acceptable as long as the material is not too thick and difficult for a person using a wheelchair to maneuver through. The walkways would need to be wide enough for wheelchairs but might also need to be used for strollers and wagons. Surfaces need an easy transition as possible with more abrupt changes needing a ramp or lift. Ramps again would be the preferred accessibility feature, and signage directing guests to those areas would be important. (See Figure)

Multiple floors in buildings would require elevators meeting access standards to transport people. Doors would still need the required clear opening and maneuvering space to allow someone to pass through easily.