ThermaTru Doors

Fire Door Rating

A measure of how long a door can prevent the passage of flame and smoke from one side of the door assembly to the other. Fire doors are usually rated for 20, 45 or 90 minutes.

Fire Door Rating & Listing Reports:

20 Minute Steel Positive Pressure
20 Minute Steel Neutral Pressure
20 Minute 6'8" Fiberglass
20 Minute 8'0" Fiberglass

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