Thermacore® Sectional Steel Doors - 593 Model 593

Thermacore® Sectional Steel Doors - 593 Model 593

The Thermacore® Sectional Door Model 593 is one of the best-selling doors in the Thermacore® line, and offers superior thermal efficiency to fit a broad range of applications. The Model 593 exterior skin is constructed of galvanized steel with a ribbed, textured finish. It is available with a white interior finish and a choice of white, industrial brown, tan or gray exterior. The Thermacore® Model 593 offers excellent thermal efficiency for medium-duty applications.

Ideal Applications Include


Product Specifications 
Standard Max Width20'2" (6147 mm)
Standard Max Height16'1" (4902 mm)
Panel thickness1 3/8" (35 mm)
R-value**12.76 (2.26 m2/W)
Air infiltrationat 15 mph (24 kmph) .08 cfm/ft2 (1.46 m3/hr/m2)
Thermal breakHot Melt
Exterior Steel.015" (.38 mm) galv.
Exterior SurfaceRibbed, textured
Standard Springs10,000 cycles

*U-factor values are independently tested and verified per ANSI/DASMA 105.
**Overhead Door uses a calculated door section R-value for our insulated doors.


  • 10 year limited delamination
  • 1 year limited on door
  • 3 year/20,000 cycle limited on door & operator system (when purchased together; on material and workmanship)
  • 20 year limited on high performance fluoropolymer coating option

Exterior Colors

  • tan color swatch


  • white color swatch


  • industrial brown color swatch

    Industrial Brown

  • gray color swatch


  • trinar white color swatch

    Trinar White

  • trinar beige color swatch

    Trinar Beige

  • trinar brown color swatch

    Trinar Brown

Actual door color may vary from the digital representation shown here. Color samples are available by request through your Overhead Door™ Distributor.

  • Chain Hoist or Electric Operator is recommended for doors above 10’ tall or more than 400 pounds
  • Aluminum sash section available up to 20'2" (6147 mm) wide
  • Insulated glass, tempered glass, polycarbonate, multi-wall polycarbonate, etc.
  • High performance fluoropolymer coating (Trinar® or equivalent)
  • High-usage package
  • Wind load options
  • Electric operator
  • Chain hoist
  • Posi-Tension™ drums
  • Safety bottom fixture
  • Bottom-sensing edge
  • Flexible jamb, header seal
  • Exhaust ports
  • Window Glazing Options