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Capitol Fireproof Door Corporation
Manufacturer · Deer Park, NY
About Capitol Fireproof Door Corporation
Manufacturer of custom fire-rated door assemblies, hollow metal doors, kalamein doors, steel door frames, and fire-rated windows for commercial, residential, healthcare, educational, and government buildings. Founded 1947, third-generation family-owned, made in USA. Primary operations in Deer Park, NY (Long Island). NYC Board of Standards and Appeals certified for 90-minute and 3-hour fire ratings. NFPA 80 compliant; also offers NFPA 80 fire door inspection services. Products: kalamein doors (24-gauge steel over kiln-dried pine, glass/louver options), hollow metal doors (14–20 gauge cold-rolled steel, honeycomb or welded rib core with rock wool insulation), kalamein and steel welded door frames, kalamein lot-line fire-rated windows (clear wire glass, frosted wire glass, or ceramic fire glass; fixed/single-hung/double-hung), and door hardware. Custom door builder/configurator available online.
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