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Insulated Sectional Steel Door 426

The Model 426 is an insulated sectional steel door for weather protection, with 2″ sections, 16-gauge stiles and a steel back cover. Polystyrene insulation reaches R-7.35.

It’s available up to 28’2″ wide and 24’1″ tall in white or Industrial Brown.

Key features include steel construction and expanded polystyrene insulation. It fits openings up to 28’2″ wide and 24’1″ high. Wind-load rated versions are available. Need sectional doors for your facility? We handle measuring, supply, installation and ongoing service across New York City and Long Island.

Construction

Product Specifications
Standard Max Width	28’2″ (8585 mm)
Standard Max Height	24’1″ (7341 mm)
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 or electric operator
Finish	White or Industrial Brown baked-on polyester
Lock	Interior mounted slide lock
Wind Load	FBC approved wind load options available

Warranty

1-year limited

Colors

White
Industrial Brown

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

Enhancements

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