Overhead Door Logo
search button

 Sectional Steel Doors - Insulated  

Skip Navigation Links

 Thermacore® 591 Series 

  

sectional steel doors with windows shown on a dock 

The 591 Series is one of the best-selling doors in the Thermacore® line, and offers superior thermal efficiency to fit a broad range of applications. The 591 Series exterior skin is constructed of galvanized steel with a ribbed, textured finish. It is available with a white interior finish and choice of white, industrial brown, tan or gray exterior.

Standard max width

35'2" (10,719 mm)

Standard max height

24'1" (7,341 mm)

Panel thickness

1 5/8" (41 mm)

R-value

14.86 (2.63 W/Msq)

U-value

.067 (.38 Msq/W)

Air infiltration

at 15 mph (24 kmph) .08 cfm (2.26 Lmp)
at 25 mph (40 kmph) .08 cfm (2.26 Lmp)

Thermal break

PVC

Exterior steel

.015" (.38 mm) galv.

Exterior surface

Ribbed, textured

Standard springs

10,000 cycle

Wind load

Meets ANSI/DASMA 102-1996

Warranty

10 year limited delamination
1 year limited on door
3 year/20,000 cycle limited on door & operator system

Exterior color options for 591

color swatch white color swatch almond color swatch sandstone color swatch brown
White Gray Tan Industrial
Brown

Interior color

  • White

  • Additional options

    • Chain hoist
    • Posi-Tension drums
    • Safety bottom fixture
    • Bottom-sensing edge
    • Flexible jamb, header seals
    • Exhaust ports