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Guide to the ADA Standards

Elevator Door Requirements [§407.3]

Timing distance shown measured 60” in front of farthest call button controlling car to centerline of hoistway door. Caption: Door and Signal Timing (§407.3.4) - Timing begins at audible and visible notification of car arrival based on when the signal becomes visible from the specified location point in front of the call button. At elevators with in-car lanterns, timing begins once doors open wide enough for the signal to be visible from this point. Minimum timing from car arrival notification to start of door closing: D / 1.5 ft/s (no less than 5 sec.)

Elevator door must fully open 3 seconds min. to min. clear width of 36” (42” for center door of 80” min by 51” min car). A tolerance of minus 5/8” allowed for 36” min. clear width only. Reopening device detection points: 5” high and 29” high. Caption: Door Delay (§407.3.5)- Doors must remain fully open 3 seconds min. in response to a call.

Source: Guide to the ADA Standards by U.S. Access Board - published 02/2014

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