4.13.11* DOOR OPENING FORCE.
The maximum force for pushing or pulling open a door shall be as follows:
(1) Fire doors shall have the minimum opening force allowable by the appropriate administrative authority.
(2) Other doors.
(a) exterior hinged doors: (Reserved).
(b) interior hinged doors: 5 lbf (22.2N)
(c) sliding or folding doors: 5 lbf (22.2N)
These forces do not apply to the force required to retract latch bolts or disengage other devices that may hold the door in a closed position.
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