Republic offers a complete line of standard and specialty hollow metal doors to fit your architectural needs. Republic doors are available in 20, 18, 16, & 14 gauge cold rolled and galvanealed steel. All doors come with a ¾” cell honeycomb core as standard, providing every door with a smoother, flatter, and stronger door. Republic honeycomb doors are available in a complete range of fire ratings (20 minute up to 3 hours) and are certified under both Underwriters Laboratories and Warnock Hersey/ITS. All doors are manufactured from stretcher level quality steel and are thoroughly cleaned and phosphatized inside and out offering excellent corrosion resistance and paint adhesion.
Basic Door Designs
Optional Door Cores
- Polystyrene (Solid Core) - 1 lb density expanded polystyrene per ASTM 578 U-Factor of .13
- Polyurethane (Solid Core) - 2 lf density polyurethane per ASTM C591 U-Factor of .10
- Steel Stiffened - Vertical hat shaped stiffeners of 20, 18, and 16 gauge with mineral wool or fiberglass batting between stiffeners. Stiffeners are welded maximum of 6" apart and on 5" centers.
- Temperature Rise/Mineral Fiberboard - Mineral fiberboard capable of withstanding a maximum of 250° temperature rise in 30 minutes. U-Factor of .26