Key Features
- Insulated sectional door with a 7.35 R-value to help maintain your plant’s environment
- Shiplap joints
- 24 gauge galvanized steel exterior with 26 gauge galvanized steel back covers
- Expanded polystyrene insulation, 2″ nominal thickness
- Optional impact-resistant bottom section for environments with forklifts
- Push-up, chain hoist or motorized operation
Specifications
| Max height | 24’1″ (7.3 m) |
|---|---|
| Max width | 28’2″ (8.5 m) |
| Nominal thickness | 2″ (51 mm) |
| Exterior steel | 24 gauge galvanized steel |
| Back cover | 26 gauge galvanized steel |
| Insulation | Expanded polystyrene |
| R-value | 7.35 |
| U-value | 0.136 |
| Exterior texture | Ribbed |
| Joint type | Shiplap |
| End and center stiles | 16 gauge steel |
| Track | 2″ (51 mm); 3″ optional |
| Springs | 10,000 cycles; 25,000, 50,000 or 100,000 optional |
| Weather stripping | 2″ (51 mm) |
| Operation | Push-up, chain hoist or motorized |
| Finish | White baked-on polyester |
| Lock | Interior-mounted slide lock |
Options
- Safety systems
- Sash section with windows
- Jamb weatherseals
- Exhaust ports
- Reinforcement struts
- Pass doors (wicket doors)
- Flexible PVC astragal weatherstrips
- Tumbler keyed lock
- Motor mounts: trolley, center mount or side mount
Construction
Optional Port and Windows
Optional Exhaust Port
Optional Aluminum Sash Section with Windows
Track Mounting Options
Vertical lift 
Standard lift 
Roof pitch 
Low headroom Rear mount torsion 
Low headroom Front mount torsion 
High lift
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
Traffic Light
Indicates when door is safe to pass
In-Ground Loop
Senses vehicles approaching
Motion Sensor
Detects people and vehicles entering an area
Radio Remote
Remotely operate the door
Horn Strobe
Alerts bystanders that door is in operation
Strobe Light
Alerts bystanders that door is in operation
Timer Module
Scheduled operation of the door
Key Switch Control
Restricted access control
Key Card
Electronic card access
Key Pad
Coded Keyless Entry
Lever Arm Switch
Positional interlock or actuation
Expansion Boards
Adds systems or capabilities
Operational Options
Push-up: for light doors. Easy on the pocketbook
Chain Hoist: manual assistance for heavier panel doors
Electric Motor: convenience and ease of use
Types of Joints
Shiplap joint
More impact resistant while also keeping out the weather
Tongue and Groove Joint
Regular duty joint that keeps out the weather, but not as rugged as our shiplap joint
Applications
The AM426 suits facilities that need a secure, durable sectional door with reliable access, while helping maintain the plant’s environment. Add the impact-resistant bottom section where forklifts operate.
Related Guides
Unfamiliar with a term on this page? Track lift, R-value, shiplap joint, cable failure device and more are explained in The Doorman’s Glossary.
