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Northwest Garage Doors

When it comes to garage doors, Northwest Door® is a leader in innovation and quality. Northwest is a family owned business that began in 1946 installing wooden garage doors. Since 1970 Northwest Door has been an inventive overhead garage door manufacturer catering to the needs of the market place. In 1989 Northwest introduced the Therma Shield, one of the first steel sandwich construction doors which has now evolved into the Therma TechTM line.

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Northwest Door has combined the elegance of a wooden carriage house style door with the latest manufacturing technology to create the new all-aluminum Infinity ClassicTM. Infinity Classic's weather resistant durability is unsurpassed and with proper maintenance, will virtually last the life of your home, "Everlasting Elegance".


CONSTRUCTION: Infinity Classic is constructed of commercial grade extruded aluminum alloy stiles and rails. Mechanical fasteners that connect the stile and rails are extremely strong and visually undetectable. The aluminum panels that are used in the door are laminated and 50 times stronger than standard aluminum panels. The panels as well as the door frame are available with a polystyrene insulation. Windows are standard with clear annealed glass and a grid overlay which creates the window design. The Infinity Classic comes standard with a white polyester finish or it can be field painted if desired.


  • Frame: 2" thick extruded aluminum 6063-T6
  • Section Joint: Shiplap joint between sections
  • Top & Bottom Rail widths: 5-7/8"
  • Meeting Rail width combined: 4-3/16"
  • End Stile width: 5-7/8",
  • Center Stile width: 7-3/4", 3-1/4"
  • Mullions: 1-1/2"
  • Panels: 1/4", aluminum both sides with laminated polyvinyl honeycomb core
  • Panels: 1", aluminum both sides with laminated polyvinyl and polystyrene core
  • Arches: Standard radius for doors up to 10' wide door are 15'-0" radius, those over 10' wide are a single 58'-0" radius or two 15'-0" radius arches (double arches)
  • Bottom weather seal: U-shape loop type vinyl
  • Finishes: White polyester vinyl
  • Limited Lifetime Warranty

STANDARD WIDTHS: 8'-0", 9'-0", 10'-0", 16'-0", 18'-0", 20'-0"
STANDARD HEIGHTS: 7'-0", 8'-0", 9'-0", 10'-0", 12'-0", 14'-0"
Sections do not exceed 32"in height


  • Widths up to 20', heights up to 14', in one inch increments (180 max. sq. ft. total)
  • Insulation, frame and panels insulated with polystyrene
  • Decorative hardware
  • 25,000, 50,000 & 100,000 cycle torsion springs
  • 1/8" clear annealed glass standard, clear obscure and insulated glass optional
  • Low clearance, high lift or vertical lift track and hardware also available

HARDWARE: 15" or 20" radius torsion hardware; track is 2" bracket mounted. Quiet long life nylon rollers, non corrosive door fixtures and graduated hinges are standard. U-shaped galvanized struts are supplied with every double car door to keep the door rigid. All doors meet or exceed 12.4/70 MPH wind load per ANSI/DASMA 102-1996.