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 Sectional Steel Doors - Insulated  

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 Thermacore® Model 591 

  

sectional steel doors with windows shown on a dock 

The Model 591 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 591 door's 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/ft2 (1.46 m3/hr/m2)
at 25 mph (40 kmph) .08 cfm/ft2 (1.46 m3/hr/m2)

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 (when purchased together)
20 year limited on Kynar premium finish option

Exterior color options for 591

color swatch whitecolor swatch almondcolor swatch sandstonecolor swatch brown
WhiteGrayTanIndustrial
Brown

Kynar finish option available in white, brown and beige. Offers superior performance vs. traditional paint for peeling, cracking, chalking, or fading as well as corrosion resistance.

Actual door color may vary slightly from the digital representation above. Color samples are available by request through your local Overhead Door Distributor.

Interior color

  • White

Additional options



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