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Sectional Steel Doors 426

Sectional steel door model 426 is ideal for heavy-duty applications requiring protection against the elements. These doors feature a 2" (51 mm) panel thickness, 16-gauge steel intermediate and end stiles, ribbed steel exterior and 26-gauge steel back cover. Polystyrene insulation provides an R-value of 7.35. The Model 426 is a 24-gauge door available in sizes up to 28´2" (8585 mm) in width and 24´1" (7341 mm) in height and is offered in white or industrial brown. A multitude of options including reinforcing struts, movable center posts, and motor operation allow these insulated heavy-duty doors to be used in a variety of commercial and industrial environments.

Sectional Steel Doors

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Where to Buy

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Features

Standard max width
28'2" (8585 mm)

Standard max height
24'1" (7341 mm)

Warranty
1 year limited

Nominal thickness
2" (51 mm)

Insulation
Expanded polystyrene

R-value
7.35 (1.29 W/Msq)

Exterior steel
24-gauge galvanized steel

Exterior surface
Ribbed

End stiles
16-gauge steel

Center stiles
16-gauge steel

Interior color
White

Back cover
26-gauge galvanized steel (poly-bonded laminate, high impact polystyrene (HIPS) backed optional)

Standard mounting
Angle mount

Standard track
2" (51 mm)

Standard springs
10,000 cycle

Weather Stripping
Standard on bottom

Operation
Manual pull rope

Finish
White or Industrial Brown baked-on polyester

Lock
Interior mounted slide lock

Door Options

Chain Hoist or Electric Operator is recommended for doors above 10’ tall or more than 400 pounds
Bottom sensing edge
Full sash section with 1/8" (3 mm) DSB, insulated; 1/8" (3 mm) and 1/4" (6 mm) acrylic
Individual lites with 1/2" (13 mm) DSB
3" (76 mm) track
Bracket mounting (not available on full vertical door tracks)
Higher-cycle springs in 25k, 50k, 75k, 100k cycles
Exhaust ports
Jamb weather seals
Bottom strips; including: looped PVC weatherstrips, flexible PVC astragal weatherstrips, and double-contact weatherstrips
Reinforcing struts of roll-formed, galvanized steel
Movable center posts for 2" (51 mm) or 3" (76 mm) tracks that roll away, with automatic safety catches that prevent door closure when posts are removed
Tumbler keyed lock
Window Glazing Options
Warehouse Package – Quick install system available
Impact Section Available

Colors

Exterior Color

White
Industrial Brown

Actual door color may vary slightly from the digital representation above.

Documents

Sectional Steel Doors 426

Exterior Color​

Exterior Color