fire rated door cores

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The five most common cores are honeycomb, polystyrene, polyurethane, steel stiffened, and temperature rise. Honeycomb core doors are used for interior and exterior openings where high thermal...
Insulated Core Options: Steelcraft L-Series doors are available with the following 2 optional insulated cores: Polystyrene slab - this core is available in non fire rated and fire rated doors...
Steelcraft doors and/or frames do not contain any asbestos. Steelcraft did use asbestos in the following products: Steelcraft S16-Series stile and rail door with flush panel and UL fire door l...
Raceway availability: Optional factory installed raceways are available in doors but are not available in frames. Preparation Info: Steelcraft installs a flexible 1/2" ID steel conduit through the...
Maximum glass light size for a 90 minute (1 1/2 hour) door depends on the type of glass being installed. Wire glass = 100 square inches is max exposed glass when wire glass is used. Note - ma...
There are several door manufacturers that have achieved a 90 minute UL Fire listing as shown. Von Duprin CVC with Marshfield Wood Door: Von Duprin is pleased to announce that Marshfield ...
The Von Duprin 5100 electric strike is not for fire rated applications.
Yes, as an option, Steelcraft doors are available with factory prepared for the 98/9949 Concealed Vertical Cable Exit Device. L, B, CE, T and CE-Series doors are available factory prepared Door...
The SED/MED series closers where discontinued in 2000. The SE or ME series from LCN can be used as replacements to provide a hold open feature, but will not have the smoke detector...