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Internal steel stiffeners extend the full door width to ensure B18, B16 and B14 Series flush doors meet architectural requirements and industry standards for full flush and steel-stiffened doors. Stiffeners are welded to the door face sheets and bonded to the opposite panel, bolstering strength and durability. Full-height, epoxy-filled mechanical interlock edges provide structural support and stability.
Beveled hinge and lock edges allow tighter installation tolerances, ensure easier operation and eliminate binding and sticking. The B Series doors are 1-3/4” (45mm) thick and offer a wide range of specifiable options covering sizes, glass light designs, edge constructions and mechanical, pneumatic and electrical hardware preparations.
Structural core strength
- Steel-stiffened core construction with welded 20-gauge hat section stiffeners provides strength and durability
- Full-height, epoxy-filled mechanical interlock edges provide structural support and stability across full height of door edges
- Visible edge seam (standard): full-height, epoxy filled mechanical interlocked edges
- Filled seam: optional edge seam epoxy filled and finished smooth; includes tack welds above and below edge cutouts for hinges, locks and more
- Welded edge s¬eam: optional edge seam welded with 1” (25mm) long weld, 2” (51mm) on center, epoxy filled between welds and finished smooth; available on B18, B16 and B14 doors
- 14-gauge [0.067” (1.7mm)] inverted top and bottom channels provide stability and protection for top and bottom edges
Ease of retrofit and installation
- Patented universal hinge preparations allow easy field conversion from standard weight .134” (3.3mm) hinges to heavyweight .180” (4.7mm) hinges
- Beveled hinge and lock edges allow tighter installation tolerances, ensure easier operation and eliminate binding and sticking
- Recessed Dezigner™ glass trim provides clean, neat and flush finish with door surface
Exceeds industry standards
- Door construction for the B Series full flush doors meets ANSI A250.8-2003 (SDI 100)
- Hardware preparations and reinforcements meet ANSI A250.6-2003
- Locations meet ANSI/DHI A115, unless otherwise stated
- Doors meet the broadest fire rating requirements; they are listed for installations requiring compliance to both neutral pressure testing (ASTM E152 and UL-10B) and positive pressure standards (UL-10C)
- Factory applied baked-on rust-inhibiting primer paint in accordance with ANSI A250.10-1998 (R2004)
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