
Commercial Steel Builders Warehouse Proof Folding Rated Insulated Fire Rated Door Steel Fire Door. Multiple Fire Ratings: Available in 30, 60, 90, 120, and 180 minutes fire resistance ratings. Customizable Dimensions: Single and double doors available in various sizes or fully customized. Diverse Material Options: Offered in Steel-Wood, Steel, and Wood constructions with perlite filling. Versatile Applications: Suitable for cable wells, stairways, elevators, offices, hotels, and homes. Comprehensive Certifications: Certified by UL, CE, NFPA, BS, and ISO9001 standards. Robust Construction: Features intumescent seals, steel sheets, and fireproof panels for safety. Flexible Opening Direction: Available in Left/Right and Outward/Inward configurations. OEM and ODM Services: Full customization support for design, branding, and specifications.