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DE Series Full Flush Doors

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.

DE Series Full Flush Doors

Republic’s DE series doors are available in 14, 16, 18, and 20 gauge cold rolled steel or galvanealed (A60) steel. Face sheets are continuously projection welded to hinge and lock channels on 5” centers. SDI Levels 1, 2, 3 and 4 – Physical performance level A, B, C, D.


  • 1-3/4″ (44.4) full flush design, rated for light to extra heavy-duty use
  • 3/4″ (19) cell honeycomb core 100% bonded to skins to provide exceptional strength and flatness
  • Hinge edge is non-beveled and reinforced with a full height 16 gauge steel channel projection welded at a maximum of 5″ on center with an additional 9 gauge reinforcement plate at each hinge location, providing more than 3/16″ (5) of total reinforcement
  • 16 gauge flush top and inverted bottom channels projection welded to both skins every 2-1/2″ on center
  • Doors are prepared for 4-1/2″ standard or heavy weight, full mortise template hinges
  • Non-handed design (square lock edge)
  • Come standard with 1-1/2 hour mylar Underwriters Laboratories fire label
  • Doors are thoroughly cleaned, phosphatized, and primed with a coat of force cured rust inhibiting primer that meets and/or exceeds the requirements of ANSI A250.10 (120 hour continuous salt spray test per ASTM B117 and 240 hour continuous humidity test per ASTM D4585)
  • Doors are individually packaged and fully plastic wrapped to prevent damage



  • 14 gauge closer reinforcement (standard option)
  • 12 gauge closer reinforcement
  • A60 galvanealed steel
  • Continuously welded seamless design or filled seamless design
  • Lock edge beveled 1/8″ in 2″
  • Polystyrene, mineral fiberboard, and polyurethane core
  • 20, 18, or 16 gauge vertical steel stiffeners (20 gauge standard)
  • Sizes available: Minimum 1’0″ (305) x 1’0″ (305), Maximum 5’0″ (1524) x 10’0″ (3048)
  • Finish paint (Republic standard and custom colors)

For more information please visit Windsor Republic’s Website