Home > Hollow Metal Doors > Hollow Metal Door Information and Resources > Are Fire Doors Hollow?

Is A Fire Door Hollow?

In this guide we explain if fire doors are hollow. A fire door can be a commercial steel or wood door. Fire labels range in how long the door can withstand fire from 20 minutes up to 3 hours. The fire label is often located on the hinge side of the door. In the early 1800’s fire doors did not exist and as a result, fire would spread through the entire building extremely fast, because the doors were unable to help retard the heat. The fire would simply move room to room, destroying the entire building in minutes. Today, fire doors only receive a fire label if they have been tested by the strictest guidelines and meet all fire codes. Fire doors are not hollow. They have a special insulated core which helps them retard heat. This insulated core is often made from polystyrene foam, but can also be a special honeycomb cardboard type of core. Specialty cores are sometimes used for extreme door applications where non standard fire doors will not suffice. When you need a fire door, we recommend Patriot hollow metal doors. Patriot hollow metal doors have fire doors ranging from 90 minutes up to 3 hours. Patriot hollow metal doors are manufactured in the USA and are trusted by building owners and contractors nationwide. Order today and receive FREE freight.



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