maximum light on non rated door

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On fire rated transom and/or sidelight frames and fire rated window frames, Steelcraft labeling procedures only control the O/A width and/or height of the frames based on wall condition. The amount...
A UL 20 minute fire rating is the maximum fire rating for a Full Glass (FG) door design. A14-Series door construction: Max fire rating is 20 minute. UL label only FG must use Over-Lapping Stee...
A fire rated door for 3 hours can have one glass light maximum: 100 square inches and must have an approved glass (Firelite type) Max glass size cannot exceed 12" in width or 33" in height. Wi...
Glass Light is a preparation in a door for view window, vision and/or glazing including glass stop and glazing bead and may also be refereed to as a lite. Doors are available with a wide variety o...
Dutch doors are available as Fire Rated door assemblies and have similar component requirements as a single leaf fire door. Exceptions are as follows: The Dutch Door assembly must have a lock...
Non fire rated doors can be furnished with a maximum 3" diameter hole for viewer preparations. Fire rated doors have a 3/4" maximum holes size unless otherwise listed by UL or ITS/WHI. Viewers mus...
Maximum glass light size for a 90 minute (1 1/2 hour) door depends on the type of glass being installed. Wire glass = 100 square inches is max exposed glass when wire glass is used. Note - ma...
Maximum glass light sizes for 3 hour fire doors is as follows: Wire glass - not approved for use in 3 hour fire doors. Ceramic glass: UL & ITS/WH allow one (1) light with 100 square inc...
ASTM E-119 is a test standard for walls, partitions and floor or roof systems: This test standard is also used for ceramic type glasses when used as window wall and/or borrowed light frames. ...
DW-Series Fire Rated Borrowed Lights are available in the following sizes: 60 minute (1 hour) rating = 2721 square inches of visible glass. maximum frame rabbet to rabbet dimensions = 78 1/4...