FIRE RATED 20, 45, 60 and 90 Minute Fire Rated MDF Doors 20 Fire Rated Door Jambs are available in virtually any width to match the wall thickness. Positive or negative pressure veneered in any wood species to match doors with up to 90 minute ratings. 3/4" Intumescent Core Width of Wall All Fire Rated Doors are constructed with intumescent cores which give them their fire rating. The look and design of the door is not compromised by the fire rating. Fire Rated Doors are utilized in commercial applications and in single family residential buildings from the garage to the house. Almost any design is available as a Fire Rated Door with ratings up to 90 minutes. (20, 45, 60 and 90) EccoDoors.com
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