Insulated Sectional Steel Doors, Thermospan® Series
The Thermospan® Series insulated 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 continuously foamed in place between the outer and inner skins.
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Insulated, Thermospan®, Model 200, TruChoice™ Custom Color,Vision Lites

Premium Thermal Efficiency & Low Maintenance
Designed to provide premium thermal efficiency, superior strength, and a long, virtually maintenance-free life, Wayne Dalton’s Thermospan® doors outperform conventional insulated steel doors. And the pre-painted, hot-dipped galvanized steel skins contribute to a long, maintenance-free life.
Insulated Sectional Steel Doors, Thermospan® Series
Suitable for medium and heavy-duty commercial and industrial applications, the Thermospan® series provides strength and durability coupled with thermal efficiency. Optional wind load engineering makes them ideal even in hurricane-prone areas.

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Insulated, Thermospan®, Model 200, White Finish, Vision Lites
Low Maintenance / Durable Design
- Commercial-grade galvanized hardware contributes to long service life and provides superior strength and rigidity.
- Virtually maintenance free due to a baked-on polyester finish
- Hot-dipped galvanized steel provides corrosion resistance and commercial durability
Thermal Performance
- Thermal break separates inner and outer skins at the top and bottom, so virtually no heat or cold is conducted through the section
- The CFC- and HCFC-free polyurethane insulation core with the standard joint seal aids in preventing air infiltration and can help reduce energy costs
- A flexible vinyl bulb seal and non-corrosive polymer retainer can help prevent water and air infiltration at the bottom of the door
Warranty
- 10-Years against cracking, splitting, rust deterioration, and delamination (Models 200-20, 200, and 150)
- 8-Years against cracking, splitting, rust deterioration, and delamination (Model 125)
- 1-Year against defects in materials and workmanship
Ideal Applications Include
Warehousing Facilities
Commercial Buildings
Industrial Facilities
Agricultural Facilities
Equipment Buildings
Maintenance Facilities
Model Comparison
Standard Construction | Model 200-20 | Model 200 | Model 150 | Model 125 |
---|---|---|---|---|
U-value* | .057 | .057 | .07 | .093 |
Thermal Break | Thermoplastic adhesive with rubber seal | Thermoplastic adhesive with rubber seal | Thermoplastic adhesive with rubber seal | Thermoplastic adhesive |
Steel Gauge | 20 | 0.015″ | 0.012″c | 0.012″ |
Sectional Thickness | 2″ | 2″ | 1.5″ | 7/8″ |
Exterior Surface | Flush non-repeating random stucco texture | Flush non-repeating random stucco texture and 1/4 inch wide pinstriping | Stucco texture and 1/4 inch wide pinstriping | Flush non-repeating random stucco texture and 1/4 inch wide pinstriping |
Sound Transmission (STC- ASTM E 413) | Class 22 | Class 22 | Class 22 | Class 21 |
Air infiltration(IECC) | 0.17 cfm/ft² | 0.17 cfm/ft² | Class 22 | Class 21 |
OITC (ASTM E 1332) | Class 19 | Class 19 | Class 19 | Class 18 |
ASTM E 84 | Class A | Class A | Class A | Class A (FS 10 or less / SD210 or less) |
UBC 17-5 | Meets | Meets | Meets | Meets |
ASTM D 1929 | Flash ignition = 734˚ F, Self ignition = 950˚ F | Flash ignition = 734˚ F, Self ignition = 950˚ F | Flash ignition = 734˚ F, Self ignition = 950˚ F | Flash ignition = 734˚ F, Self ignition = 950˚ F |
Wind Load** (optional) | Yes** | Yes** | Yes** | No |
Thermospan® Series, Design Options

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Thermospan®, 125, White Finish, Vision Lites
Lite Options
- Thermolite™
- Black
- Tru-Choice Color Match
Glass Options
- Insulated
- Tempered
Multi-wall polycarbonate glazing Options
- Brown
- White
- Clear
Factory Installed top
Weatherseal EPDM bulb seal
Thermal Performance Jamb Seal
Special track designs
Continuous wall angle standard
Lite Options

Vision lites

Full-view lites
Colors Options

White Smooth

White Stucco

Tan Stucco

Brown Stucco

Gray Stucco
Finish Options | Model 200-20 | Model 200 | Model 150 | Model 125 |
White Smooth | * | |||
White Stucco | * | * | * | |
Tan Stucco | * | * | ||
Brown Stucco | * | * | ||
Gray Stucco | * |
TruChoice®
Thermospan® Series is available with the TruChoice® Color System, Wayne Dalton’s custom painting process that offers more than 6,000 colors. See dealer for details.
Actual colors may vary due to fluctuations in the printing process. Always request a color sample for accurate color matching.

Wayne Dalton’s ThermoMark™ & Thermospan® Collection
Wayne Dalton’s ThermoMark™ & Thermospan® Collection
Call us today at (519) 735-7790
Or Send Us an Email on the Form
Get A Quote Today
Only fill out this form if you are in the Windsor, Ontario Canada area…for all other areas in Canada and the U.S.A., please go to Wayne Dalton Dealer Finder and you will find a dealer in your area.
Wayne Dalton Sales Center of Windsor – 13425 Desro Dr, Tecumseh, ON N9K 0B7, Canada
Call us today at (519) 735-7790
Or Send Us an Email on the Form
Get A Quote Today
Only fill out this form if you are in the Windsor, Ontario Canada area…for all other areas in Canada and the U.S.A., please go to Wayne Dalton Dealer Finder and you will find a dealer in your area.
Wayne Dalton Sales Center of Windsor – 13425 Desro Dr, Tecumseh, ON N9K 0B7, Canada