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Thermospan® 150

Insulated Sectional Steel Doors For Efficiency and Strength

Thermospan® Model 150 polyurethane-insulated, sectional steel door provides excellent thermal efficiency. Featuring an R-value* of 14.16 (U-value of .0706), the Thermospan® Model 150 is an excellent value when thermal efficiency is important, but strength, rigidity and durability can’t be compromised.
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The Wayne Dalton Thermospan® Series doors are the only sectional doors in the industry with patented, roll-formed integral struts on each section, making them the most rigid doors available. The Thermospan® Series also has a patented manufacturing process with a polyurethane core that is continuously foamed-in-place between the outer and inner skins. An innovative thermal break keeps the interior skin at room temperature, preventing condensation and frost and helping to resist corruption.

*Wayne Dalton uses a calculated door section R-value for insulated doors.

Key Product Features

  • Max Width: 26’2”
  • Max Height: 20’1”
  • 27-gauge exterior steel
  • Polyurethane insulation, R-value* = 14.16, U-value = .07
  • 1-3/8” section thickness
  • 10,000 cycle standard spring

*Wayne Dalton uses a calculated door section R-value for insulated doors.

Door Construction

construction of door 
  1. Thermal break separates the inner and outer skins at the top and bottom so virtually no heat or cold is conducted through the section.
  2. Patented foamed-in-place technology bonds the polyurethane core to hot-dipped galvanized inner and outer skins, creating a door that is significantly more efficient than conventional insulated steel doors.
  3. Flush door embossed pinstriping (grooves) on the outer skin adds strength.
  4. Prepainted inner and outer skins are hot-dipped galvanized steel for added corrosion resistance.
  5. Roll-formed integral struts add rigidity and strength.
  6. 18-gauge “wrap-around” end caps offer interior hinge attachment surface and an exterior leg for a proper seal against the jamb.
  7. Joint seal prevents air infiltration and helps save energy.

IECC® Compliant

The Thermospan® 150 meets IECC® requirements for maximum U-factor of operable fenestrations (2015 Section C402.4) with a 3rd party certified tested value of less than 0.37. Thermospan® 150 also meets the ASHRAE 90.1 and IECC® requirement for maximum air leakage for fenestration assemblies (2015 Section C402.5.2 Garage doors) with a 3rd party certified tested value of less than 0.40.

Lite Options

Vision lites allow for visibility while maintaining security. Full-view sections allow for maximum natural light and visibility.

Options & Accessories

  • Pass Door
  • Chain hoist operation
  • Motor Operation
  • Sensing edges
  • Photo eyes
  • High cycle spring (25k, 50k, 100k)
  • 3” Track
  • Solid shafts
  • Perimeter weather seal
  • Special track designs
  • Mullions

Wind Safe logo 

Impact Rated logo 

*Static and Impact Wind Load designs are certified by the state of Florida (FBC), the Texas Department of Insurance (TDI), and the designs are compliant with the 2015 IBC. No Miami DADE certifications.


Color Options

Custom Color

This commercial door model is available with the TruChoice™ Color System, Wayne Dalton’s custom painting process that offers more than 6,000+ colors.

TruChoice color system 

Online color swatches are only digital reproductions of actual standards and will vary in appearance due to differences in monitor and video card output. These digital representations should not be used to finalize color selection(s). 

Additional Information

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