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Select from 1-3 Hour Warnock Hersey, Fire-Rated Floor Doors in the Largest Sizes Available.  These  fully recessed floor doors are to be installed flush with the surrounding floor surface, and feature several door options. Select models for wood framing or cast-in-place with a Patented Design. 

Frame: 12 ga (2.75 mm) galvannealed steel. Depth varies with model.

Door: 3/16” (4.78 mm) steel diamond plate and 14 ga (1.99 mm) door liner. Gasketed on all 4 sides on the upper section of the frame only.  Door panel is filled with a high temperature insulation material.

Finish: Grey primer.

Below Grade Finish: Concrete: Mill with bituminous coating below grade finish, Wood: Frame prime-coated.

Hardware: See individual submittals

Live Load: 300 lbs./ft.2 

Options: Aluminum smooth or diamond plate, steel smooth or diamond plate, recessed door for VCT or carpet, lock options. Options vary with model.

Tested and listed by Warnock Hersey to standards: NFPA 288, ASTM E119, CAN/ULC S101 and NFPA 251; which states “Transmission of heat through the specimen (floor door) during classification period (listed rating period) shall not have been as to raise the average temperature on its unexposed surface more than 139 degrees C (250 degrees F) above its initial temperature”. Hose stream test standards: NFPA 252, UL 10(b), CAN4-S104 (ULC-S104) and UBC 7-2-94.