The population most dependent on power doors usually has very limited use of their hands, often limited to one hand. Door operators should be large push-plates that can be actuated by a mouth-stick or a hand with limited mobility. As with elevator call buttons, the center of the actuator should be 43" above the floor, and the placement should allow for use either by left-handed or right-handed individuals. This often requires placement of the actuator farther from the door than normal to allow a double U-turn as shown in the illustration, three feet minimum and four feet preferred. The anticipated path of the wheelchair must also be clear of the door swing.
To reach the "wrong" side, a power wheelchair user with mobility on only one side must make a U-turn to approach the door actuator button while facing away from the door. After pushing the button, the user makes another U-turn to travel through the door after it opens.
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Accessibility Guidelines, 4.13 Doors
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