Micro-Grooved Polystyrene Sandwich Door

residential garage overhead door

C.H.I. 3285 Commercial Micro-Grooved Polystyrene Sandwich Doors

The Seriesl 3285 is specially engineered for extra durability offering years of dependable operation.

Constructed of the finest raw materials by skilled craftsmen and customized with computer-aided precision.

C.H.I. 3285 Polystyrene Sandwich Door

Model 3285 is 26-gauge and insulated.

C.H.I. Model 3285 Features


  • Features four evenly spaced micro-grooves that run horizontally across each section
  • Double-sided steel doors are 26-gauge front and 27-gauge back for sturdiness
  • Concealed steel back-up plates from top to bottom of each section for secure hareware attachent
  • Section joints are tongue-and-groove
  • White painted end stiles
  • Bottom "U" type astragal is a standard feature
  • Available in white, almond, sandstone or brown


  • Tracks are 2" or 3", as specified
  • Available in bracket mount, angle mount, clip angle mount, 12" radius, 15" radius, high lift, vertical lift, roof pitch or duel track low headroom
  • Optional one (1) piece 2" vertical lift track is available for doors 7' to 10' high
  • Hardware:

    • Package includes 11-gauge or 14-gauge hinges as specified
    • 2" or 3" short-stem or long-stem ball bearing rollers
    • Heavy-duty adjsutable top roller brackets

    C.H.I. Model 3285 Micro-Grooved Door Springs

    • Torsion springs are helically wound with oil-tempered wire
    • Springs are individually-calibrated for each door
    • Torsion tubes are galvanized for rust resistance
    • High cycle spring options may be specified

    C.H.I. Model 3285 Micro-Grooved Door Insulation

    • Polystyrene core that's secured in place with a urethane adhesive to increase structural integrity
    • R-value* - 10.29


    • White
    • Almond
    • Sandston
    • Brown
    • Gray

    Manufacture Term: 

    Asta Door Corporate Office


    • 638 Cassville White Rd NW
    • Cartersville, GA 30123
    • Fax: 770-974-1455

    Fayetteville ADC


    • 500 Marksmen Court
    • Fayetteville, GA 30214
    • Fax: 770-716-3171

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