maximum throat size

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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...
Yes, hospital stops are available on fire rated frames. Maximum approval = 3 hour Maximum sizes:  singles up to 4'0" x 8'0" pairs up to 8'0" x 8'0" Maximum hospital stop height 6" from bot...
The use of Panic Hardware and/or Fire Exit Hardware is required by the International Building Code (IBC) and NFPA 101 – The Life Safety Code, depending on which code and which edition of the code i...
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...
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...
GrainTech® is available with very broad fire ratings. The option of GrainTech® does not affect the fire rating of the door. Fire ratings depend on the door series, hardware and applications. ...
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 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...
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...
Steelcraft Paladin PW-Series doors and FP-Series frames meet FEMA Tornado Resistant requirements and have been designed and tested to meet the requirements of FEMA 361 guidelines and ANSI ICC500. ...
The following size limitations per frame unit, are in enforced for welded elevation frames shipped from the factory. These limitations are in place due to the physical size of shipping tr...
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...
Drywall Throat Fillers are used when wall thickness is between 1/8” (3mm) to 1/4” (6mm) less than the frame throat dimension, throat filler section(s) can be used to fill the gap, assuring the prop...
Maximum nominal (overall) single door sizes are as follows: L-Series (Laminated Door) 20 Gage = 3’ 0” wide X  8’ 0” high 18 Gage = 4’ 0” wide X 10’ 0” high 16 Gage = 4’ 0” wide X 10...
FM Global is an independent underwriting agency with listing, in-plant inspection, and labeling capabilities. FM fire rated doors and frames are available, however there are a minimal amount ...
Wallboard must penetrate a minimum of ½” into the hollow metal frame, based on NFPA Pamphlet 80, (page 80-2, figure A.4.6.3.1) .
ITS/WHI Fire Rated three (3) frames are available in the following maximum door opening sizes: F and FN-Series: 4' 0" X 10' 0" single door 8' 0" X 10' 0” double door or pairs MU-Series: ...
Yes, Steelcraft doors we are approved up to 48" in height or not to exceed a total 2304 square inches per face. Protective plates are usually flat sheets of metal or plastic applied to one or both...
Steelcraft offer a 12 gage F-Series frame. Basic product offering: Door opening size: Single Door = 4´-0" x 8´-0" Double Door = 8´-0" x 8´-0" Double rabbet only. Single rabbet is not ...
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...
Maximum Dutch Door sizes are: Non Labeled = 4'0" wide X 8'0" High Labeled = 4'0" wide X 7'2" High Special sized Dutch Doors are available: Special size top and/or bottom leaves are availabl...
A Kerfed Frame is a frame that is formed with an optional integral pocket or recess in the area of the stop to receive gasket, seals or weather stripping. Kerfed frames are available as an&n...
Fire Rated three (3) frames are available in the following maximum door opening sizes: F and FN-Series frame: 4' 0" X 10' 0" single door opening 8' 0" X 10' 0” double door opening MU-Ser...
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 lights are available in fire rated T-Series doors: Limited to one (1) light per door leaf with a maximum of 100 square inches of exposed glass. This applies to all hourly ratings a...
The 8402 kick plate is "A" label for metal doors and "B" for wood doors.
Maximum hourly rating for a transom and side light or panel frame is 1 1/2 hour (90 minutes). In masonry wall application the maximum is 13'6" x 12'2" In stud wall application the maximum is 13...
Communicating Frames are hollow metal frame fabricated such that a door is installed in each rabbet of a double rabbeted frame (2 doors total) to facilitate dual access and control of the opening, ...
An EPT can be used with a Cam Lift Hinge: Maximum hinge lift dimension = 1/2".  The EPT must be installed correctly with the tube at the top on the door side and the tube at bottom on...