fire rated glass size

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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...
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...
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...
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...
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 UL Fire Rated door sizes are as follows: A-Series: 4' 0" X 8' 0" single door 8' 0" X 8' 0” double door or pairs B-Series 4' 0" X 10' 0" single door 8' 0" X 10' 0” double doo...
ITS/WHI is "Warnoch Hersey". ITS/WHI is the formal designation for Intertek Testing Services / Warnock Hersey. ITS/WHI is an independent agency with testing, listing, in-plant inspection, and label...