door rated cores l series

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Door cores are available as follows: L-Series SL-Series and A14-Series Doors: Honeycomb core is standard Polystyrene core is optional Polyurethane core is optional CE-Serie...
All doors are tested in accordance with ASTM C1363 and SDI 113:B18 Series (Steel Stiffeners)     U-Factor = 0.50     R-Value = 2.01B16 Series (Steel Sti...
A UL 20 minute fire rating is the maximum fire rating for a Full Glass (FG) door design. A14-Series door construction: Max fire rating is 20 minute. UL label only FG must use Over-Lapping Stee...
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...
UL Listed for 3-hour fire door (except L9076 and L9077)
No, steel stiffeners are not required in Hollow Metal doors, they are one of many optional core available. Per ANSI/SDI A250.8 and ANSI/HMMA 867, core construction are optional o...
Polyisocyanurate foam (polyiso) is modified polyurethane foam but offers greater dimensional stability over a wider service temperature range.Polyisocyanurate foam is specifically formulated to pro...
Polystyrene Cores: The L-series door with polystyrene core insulation and the CE-series door have full slab polystyrene core.Polyurethane Cores: The L-series door with polyurethane core has honeyco...
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...