C.H.I. 3212 Sectional Door

Sectional Doors Micro Grove 3212 has four evenly spaced micro-grooves that run horizontally across each section and incorporates a tongue-and-groove joint between each section that gives the door an even, symmetrical appearance. The durability and insulating value of this double-sided, polyurethane, core-insulated steel door combined with its feature-rich design options, makes this door a popular complement for many building designs.

chi sectional door series 3000

Product Details:

  • 2″ Thick Sections
  • 28 gauge commercial quality steel
  • Polyurethane Insulation – R-Value 17.54
  • Four evenly spaced micro-grooves run horizontally across each section
  • Thermally-broken to eliminate thermal conduction
  • Bottom “U” type astragal is a standard feature
  • Concealed steel back-up plates run from top to bottom of each section for secure hardware attachment
  • White painted end stiles

Maximum Standard Size:

  • Max width 24’2” x 16’ high

Panel Configurations:

  • 18″, 21″ or 24″ high by width of door

Colors / Appearance

  • White
  • Various accessories and options available.

Optional Lites / Windows

  • 24″ x 6″ or 24″ x 12″ Lites with 1″ insulated glass
  • Clear, Tempered or Tinted

Product Documents:


Richard wilcox - Thermatite t200
Wayne Dalton - ThermoMark 5255
Upwardor Sectional Doors Thermalex TX500