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Thermacore® Sectional Steel Doors 593

sectional doors used on building
​​​​​​​​​​​​​​​​​​​​​​​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.​

Standard max width
20'2" (6147 mm)

Standard max height
16'1" (4902 mm)

Panel thickness
1 3/8" (35 mm)


12.76 (2.26 m2/W)

Air infiltration
at 15 mph (24 kmph) .08 cfm/ft2 (1.46 m3/hr/m2)

*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.

Thermal break
Hot Melt

Exterior Steel
.015" (.38 mm) galv.

Exterior Surface
Ribbed, textured

Standard Springs
10,000 cycles

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 ​

Door Options
​​Door Options 
  • 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​

Exterior Color

  • white color swatch White

  • industrial brown color swatch Industrial Brown​​​​​​​​
  • gray color swatch Gray
  • tan color swatch Tan

  • trinar white color swatch Trinar
  • trinar white color swatch Trinar
  • trinar white 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.​​​​​​​​​

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