Fire rated doors have a 3 4 maximum holes size unless otherwise listed by ul or its whi.
Fire rated door maximum size.
Non fire rated doors can be furnished with a maximum 3 diameter hole for viewer preparations.
Ceco door offers a complete line of standard hollow metal doors in face sheet gauges ranging from 20 to 14.
Fire ratings for doors are influenced by but not limited to the following items.
Ul labels are also discussed.
Note many code are outlawing the use of wire glass due to the hazards of injury from glass breakage.
Wire glass 100 square inches is max exposed glass when wire glass is used.
20 gage door constructions are approved for smaller door sizes than what is shown above.
Maximum glass light size for a 90 minute 1 1 2 hour door depends on the type of glass being installed.
Fire rated doors have a 3 4 maximum holes size unless otherwise listed by ul or its whi.
Steel gage of the door example.
The fuego temperature rise doors offer the maximum in fire and life safety as they feature 250 degrees f ratings.
Non fire rated doors can be furnished with a maximum 3 diameter hole for viewer preparations.