Clear Width [4.13.5] and Vertical Clearance
The clear width of the opening is measured from the face of the door in a 90 degrees open position to the opposite stop. Panic bars and other hardware do not require additional width since they are usually mounted above the widest portion of wheelchairs. In alterations, a projection up to 5/8 inch is permitted for the latch-side stop where it would otherwise be necessary to widen a door. Swing-away or offset hinges can provide additional clearance. Headroom at least 80 inches high is required along all circulation routes, including doorways. Eighty-inch doors, including those equipped with closers, are considered acceptable under this requirement.
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