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D. Egress Capacity Width
In determining the egress width for swinging doors, only the clear width of
the doorway when the door is open ninety degrees (90 o ) shall be mea-
sured. In determining the egress width for other types of doors for purposes
of calculating capacity, only the clear width of the doorway when the
door is in the full open position shall be measured. Clear width of
doorways shall be measured between the face of the door and the stop
in accordance with Section 10.2.5.2 para “E” of this IRR.
E. Width and Floor Level
1. Door openings in means of egress shall not be less than seventy one
centimeters (71 cm) in clear width. When a pair of doors is provided,
not less than one of the doors shall provide at least seventy one
centimeters (71 cm) clear width opening.
2. No single door in a doorway shall exceed one hundred twenty two
centimeters (122 cm) in width.
3. The elevation of the floor surfaces on both sides of a door shall not
vary by more than one and three-tenths centimeters (1.3 cm). The
elevation shall be maintained on both sides of the doorway for a
distance not less than the width of the widest leaf. Thresholds at
doorways shall not exceed three-tenths centimeters (1.3 cm) in height.
Raised thresholds and floor level changes in excess of six millimeters (6
mm) doorways shall be beveled with a slope not steeper than 1 in 2.
F. Panic Hardware
1. When a door is required to be equipped with panic hardware by
some other provisions of this Rule, the panic hardware shall cause the
door latch to release when a force of not more than seven kilogram
force (7 kg-f) is applied to the releasing device in the direction of exit
travel.
2. Such releasing devices shall be bars or panel extending not less than
two-thirds (2/3) of the width of the door and placed at heights suitable
for the service required, and shall not be less than seventy six (76) nor
more than one hundred twelve centimeters(112 cm) above the floor.
3. Required panic hardware shall not be equipped with any locking or
dogging device, set screw, or other arrangement which can be used
to prevent the release of the latch when pressure is applied to the bar.
G. Self-Closing Devices
1. A door normally required to be kept closed shall be installed or
equipped with automatic door closer in accordance with the
following criteria:
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