Model 426

Sectional Steel Doors | Commercial Products

​​​​​​​​​​​​​​​​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-door-426-wide

​​​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 color swatch White
  • industrial brown color swatch Industrial Brown​​​​​​​​​

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

​​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