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International Fireproof Door Co.  manufactures a full range of hollow metal doors.  Standard doors are 1 Ύ” (45 mm) in thickness and are available in 14, 16, 18, and 20 gauge.  Door skins are mechanically interlocked vertically along the hinge and lock edge.  Door edges are beveled 1/8” (3 mm) in 2” (50 mm) and door surfaces are flush and free of any joints, welds or seams.  All standard doors are manufactured from galvannealed or satincoat steel and are prepared and reinforced to receive specified architectural hardware in accordance to ANSI A115 Standards.  Stainless Steel, Leaded (X-Ray) and G90 doors are also available.

FIRE LABELS: International’s fire labeled, hollow metal doors, are approved by Warnock Hersey (WH) Fire Labelling Program.  Fire labeled hollow metal doors must be installed with an equivalent fire labeled frame with approved fire listed hardware.  Can be labeled 45, 90 or 3 hour rated.

MORTISE LOCK PREP: Government Series 86 edge door prop is reinforced with a 18 gauge reinforcement box with integrated clips to help hold mortise lock in its proper position in accordance to ANSI A115.1 requirements.

161 CYLINDRICAL LOCK: Government Series 161 Cylindrical Lockset door prep is equipped with 18 gauge reinforcement and an added barrel support spot welded to the edge of the door in accordance to ANSI A115.2 requirements.

        HINGE REINFORCEMENT: 10 gauge high frequency hinge reinforcement with return bend for added strength.


Honeycomb Polystyrene
R value= 7.0
R value= 12.25
Mineral Board 
(Temperature Rise)  
Steel Stiffened
20 gauge
@6” o.c.


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