Insulated Overhead Door (AM426)

The Bulwark of Sectional Doors

When you need a secure and durable sectional door that provides reliable access to your facility, the AM426 Insulated Overhead Door is at your service. It’s simple, has low-maintenance, and it gets the job done.

With a thermal efficiency R value of 7.35, our model AM426 Insulated Overhead Door helps maintain your plant’s environment while also ensuring security and ease of use. It is available in a wide variety of sizes, and has many options and safety systems to choose from, including an impact resistant bottom section for environments with forklifts.

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Powder Coating

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AM264 structure section cut view
AM264 structure

Optional Exhaust Port

Overhead Door Exhaust Port

Optional Aluminum Sash Section with Windows

Overhead Door Windows

Powder Coat Options (over 200 colors available)

Powder Coating colors

Track Mounting Options

Safety and Security Options for Motorized Doors

  • Photo Eye – detects people and vehicles passing the eye
  • Safety Edge – detects the door closing on an object
  • Push Button Control – station to control the door
  • Key Switch Control – restricted access control
  • In-Ground Loop – senses vehicles approaching
  • Radio Remote – remotely operate the door
  • Horn – alerts bystanders that door is in operation
  • Strobe Light – alerts bystanders that door is in operation

Standard Features

Max Height
24’1” (7.3 meters)

Max Width
28’2” (8.5 meters)

Nominal Thickness
2” (51mm)

Exterior Steel
24 gauge galvanized steel

Back Cover
26 gauge galvanized steel

Expanded polystyrene

Thermal Efficiency
7.35 R Value

Exterior Texture

Joint Type

End And Center Stiles
16 gauge steel

2” (51mm) (optional 3”)

10k cycles (optional 25k, 50k, 100k cycles)

Weather Stripping
2” (51mm)

Push-up, chain hoist, or motorized

White baked-on polyester

Interior mounted slide lock

Other Options

  • Safety systems
  • Sash section with windows Jamb weatherseals
  • Exhaust ports
  • Reinforcement struts
  • Pass doors (wicker doors)
  • Flexible PVC
  • Astragal weatherstrips
  • Tumbler keyed lock
  • Motor Mount Options: trolley, center mount, side mount

Operational Options


Push-up: for light doors. Easy on the pocketbook

chain hoist

Chain Hoist: manual assistance for heavier panel doors

electric motor

Electric Motor: convenience and ease of use

Types of Joints

Shiplap Joint

Shiplap joint
More impact resistant while also keeping out the weather

Tongue and Groove Joint

Tongue and Groove Joint
Regular duty joint that keeps out the weather, but not as rugged as our shiplap joint


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