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The Largest Two-Hour Wall and Ceiling Door Available on the Market, Offering Unprecedented Flexibility in Designing.  Double Leaf Reduces the Swing Radius and Clears Objects Which Interfere with the Opening of the Door.


Materials: Satin finish galvannealed steel or 304 stainless steel

Frame: 16 ga., up to and including 30” x 48”. Larger sizes are 14 ga. Removable center mullion. Frame Depth 2 1/4” (57 mm). 

Flange: 7/8” (22 mm) up to and including 36” x 36”. Larger sizes are 1-1/4” (32mm).

Door Panel: 18 ga. panel with 22 ga liner.

Insulation: The door panel contains 1 1/2” of high temperature insulation material.

Finishes: Rust-inhibitive off-white prime coat or # 4 polished stainless steel finish on exterior surface.

Hinges: Concealed continuous rod hinge. 48” or longer in wall position will be a continuous piano hinge. Stainless models have a stainless steel continuous piano hinge. Hinge is the (H) dimension.

Panel Closer: The automatic panel closer will close & latch the door from an open position of approximately 90° as required by NFPA 80. 

Latch: The standard factory installed latch is a flush mount 1/4” allen key. All fire-rated locks are self-latching and include an interior latch release mechanism allowing the doors to be opened from the inside.

Sizes: Minimum size 18” x 12”. Maximum height for walls is 48” x 60”, maximum for ceilings is 60” x 48”.


Intertek Warnock Hersey Listed and Labeled: 

2 Hour Fire Rating for vertical and horizontal installation

Temp Rise Max: 139°C / 250° F at 30 Min 250° C / 450° F at 60 Min


Testing Standards:

Vertical:  NFPA 252, UL 10B, CAN/ULC S10 4 

Horizontal: UBC 43-7, CAN/ULC S112