Series 418 Insulated

The 418 Series is a high-quality, heavy-duty insulated door that provides protection against heat and cold environments. Fabricated of 16-gauge, flush galvanized steel exterior and 26-gauge steel backcover, these 2" (51mm) thick doors offer the choice of expanded polystyrene or isocyanurate insulation for R-values up to 7.35 (1.29 W/Msq). A wide array of options allows these doors to meet the most stringent project requirements that call for a degree of thermal efficiency.

Standard Features

  • Nominal Thickness - 2" (51 mm)

  • Maximum Standard Width - 30'2" (9804 mm)

  • Maximum Standard Height - 21'1" (6426 mm)

  • Exterior Steel - 16-Gauge Galvanized Steel

  • Back Cover - 26-Gauge Galvanized Steel (Poly-Backed, HIPS-Backed Optional)

  • Insulation - Expanded Polystyrene (standard) Isocyanurate (Optional)

  • R-Value -

    • Polystyrene - 7.35 (1.29W/Msq)
    • Isocyanurate - 11.69 (2.06 W/Msq)

  • Exterior Surface- Flush

  • End Stiles - 16-Gauge Steel

  • Center Stiles - 16-Gauge Steel

  • Standard Mounting - Angle Mount

  • Standard Track - 2" (51 mm)

  • Standard Springs - 10,000 Cycle

  • Weatherstripping - Standard on Bottom

  • Operation - Manual Pull Rope

  • Finish - White Baked-On Polyester

  • Lock - Interior-Mounted Slide Lock


  • Electric Operator or Chain Hoist
  • Bottom Sensing Edge
  • Full Sash Section with
    • 1/8" (3 mm) DSB
    • 1/8" (3 mm) Insulated
    • 1/8" (3 mm) and 1/4" (6 mm) Plexiglass
  • Individual Lites with 1/2" Insulated DSB
  • 3" (76 mm) Track
  • Bracket Mounting
  • High-Cycle Springs in 25k, 50k, 75k, and 100k Cycles
  • Exhaust Ports
  • 5-Pin Tumbler Keyed Lock
  • Pull-Rope Auto Release

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Architectural Specifications

Part 1 General

1.01 Work Included
The doors will be 418 Series as manufactured by Overhead Door Corporation.

1.02 Related Work
Opening preparation, miscellaneous or structural metal work, access panels, finish or field painting, field electrical wiring, wire, conduit, fuses and disconnect switches are in the Scope of Work of other divisions or trades.

1.03 Quality Assurance
In accordance with accepted quality assurance guidelines for motor-operated doors, both the door and electric operator (optional) shall be manufactured by a single-source producer of door systems; as by Overhead Door Corporation.

Part 2 Product

2.01 Sections
Section profile will be flush. Sections will be 16-gauge, roll formed galvanized steel exterior. Sections will have a nominal thickness of 2" (51 mm). Doors will have rabbeted meeting rails to form weathertight joints and provide full-width interlocking structural rigidity. Back cover will be 26-gauge steel. (poly-backed, HIPS-backed optional)

2.02 Insulation
Insulation will be polystyrene with an R-value of 7.35 (1.29 W/Msq) (Optional isocyanurate insulation with an R-value of 11.69 or 2.06 W/Msq).

2.03 Center and End Stiles
Center and end stiles will be 16-gauge steel, formed and fastened as integral structures with the rolled sections. End stiles will be channel-shaped to 2" (51 mm) deep.

2.04 Springs
Standard springs will be 10,000 cycles. (Optional higher-cycle 25,000, 50,000, 75,000, or 100,000-cycle springs).

2.05 Hardware
Hinges and fixtures will be galvanized steel. Full-floating ball-bearing rollers will have hardened steel races. Roller sizes will be adequate for design requirements and limitations.

2.06 Track
Track is 2" (51 mm) standard (3" (76 mm) optional) angle-mounted. (Bracket-mounted track is an option, but not available on full vertical doors).

2.07 Lock
Lock will be interior-mounted slide lock. (Optional tumbler keyed lock is available.)

2.08 Weatherstrip
Bottom weatherstrip will be flexible PVC and held in place by a retainer that also provides additional reinforcement.

2.09 Finish
Finish will be factory baked-on white polyester coating.

2.10 Operation
Operation will be by manual pull rope. (Optional chain hoist and electric operator are available.)

Part 3 Execution

3.01 Execution
Install the doors in accordance with Overhead Door Corporation instructions and standards, using an authorized Overhead Door Corporation distributor.