ThermoMark™ 5150 5155, 5255 & 5200
ThermoMark™ doors provide high quality thermal efficiency, using foamed-in-place polyurethane insulation between two steel panels. This creates a strong door that is flush with the interior of the door. With residential or commercial exterior design options, ThermoMark™ doors are aesthetically pleasing and come with various color and window options for any application. ThermoMark™ doors are also the preferred door for wind load applications.
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Insulated, ThermoMark™, Model 5150, Brown Finish, Clear Long - All Windows

Thermal Efficiency & Low Maintenance
ThermoMark™ sectional steel commercial doors made to accommodate RVs, large trucks, heavy equipment, boats, trailers, and garage-based shops. ThermoMark™ 5,000 Series is ideal for commercial or industrial applications requiring durability and aesthetics.
ThermoMark™ 5150 5155, 5255 & 5200
Models 5150 and 5200 are the ideal choices if you’re looking for a commercial door that combines strength and insulation but is also aesthetically appealing without the traditional industrial look. Then, Models 5155 and 5255 are insulated commercial sectional doors ideal for projects requiring something more rugged and durable, with excellent thermal insulation qualities.

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ThermoMark™, Model 5150, White Finish, All Windows
Low Maintenance / Durable Design
- Factory-finished interior and exterior hot-dipped, galvanized skins make installation easier, add life to the door, and provide greater durability
- Steel end caps and hardware plates add commercial durability and longevity
- The bulb-shaped bottom seal remains flexible even in extreme cold to help keep extreme weather conditions outside
- Stucco steel back panels provide appealing aesthetics
- The two-coat, baked-on polyester finish makes the surface virtually maintenance-free
Thermal Performance
- The thermal break helps ensure year-round energy efficiency
- The CFC- and HCFC-free polyurethane foamed-in-place insulation core is securely bonded to hot-dipped galvanized inner and outer skins to create a door that is significantly more efficient than conventional insulated steel doors
- Sound-absorbing insulation makes the door quieter in operation; reduces wind rattling
Warranty
- 10-Year limited warranty against delamination, cracking, splitting or deterioration due to rust-through
Ideal Applications Include
Production Facilities
Loading Docks
Storage & Vehicular Storage
Manufacturing & Industrial Facilities
Commercial Buildings
Drive-Thru & Truck Bays
Model Comparison
Standard Construction | Model 5150 | Model 5200 | Model 5155 | Model 5255 |
Max. Width | 20’2″ | 26’2″ | 20’2″ | 26’2″ |
Max. Height | 20’1″ | 20’1″ | 20’1″ | 20’1″ |
U-factor* ![]() | .15 | .12 | .15 | .12 |
R-value** | 12.12 | 16.22 | 12.12 | 16.22 |
Sectional Thickness | 1 3/8″ 3-layer | 1 7/8″ 3-layer” | 1.5″ 3-layer | 1 7/8″ 3 layer” |
Thermal Break | Yes | Yes | Yes | Yes |
Spring Cycle | 10,000 | 10,000 | 10,000 | 10,000 |
Exterior/Interior Surface | Embossed Wood Grain or Stucco Embossed / Pinstripe | Embossed Wood Grain or Stucco Embossed / Pinstripe | Stucco Embossed / Flush | Stucco Embossed / Flush |
Exterior Surface | Stucco Embossed / Pinstripe | Stucco Embossed / Pinstripe | Stucco Embossed / Pinstripe | Stucco Embossed / Flush |
Exterior Steel | 0.015″ (.35mm) | 0.015″ (.38mm) | 0.015″ (.35mm) | 0.015″ (.35mm) |
Panel Designs | Yes (6) | Yes (5) | No | No |
Air infiltration (IECC) | 0.23 cfm/ft2 at 25 mph | 0.23 cfm/ft2at 15 mph | 0.23 cfm/ft² at 25mph (4.20 m3/hr/m2 at 24 kmph) | 0.17 cfm/ft2at 15 mph |
Sound Transmission (STC) | Class 20 | Class 20 | Class 20 | Class 20 |
Wind Load (optional) | Yes*** | Yes*** | No | No |
*U-factor is independently tested and verified per ANSI/DASMA 105 using solid doors and specific product sizes.
**Wayne Dalton uses a calculated door section R-value for our insulated doors.
***FBC, TDI, Miami Dade approved wind load reinforcement is available for hurricane-prone areas
ThermoMark™ Series, Design Options
Panel Options – TThermoMark™ 5150/5200

Short Panel

Long Panel

Vertical Short Panel

Vertical Long Panel

Flush Panel
ThermoMark™ 5155/5255

Stucco-Embossed Pinstripe Panel
Stucco Embossed Pinstripe Finishes

White Smooth

Almond

Sandstone

Terra Bronze

Brown

Black
Wood Grain Impression™ Bi-Directional Finishes
Not available on the Flush panel

Western Cedar

Carbon Oak

Medium Oak
Color Options
Models 5200, 5155, and 5255

Almond

Brown

Black

Sandstone

Terra Bronze

White
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.
Choose Your Windows
Paint Finishes

Arched Stockton Long

Ashton Long

Cascade Short

Cascade Long

Cathedral Short

Cathedral Long

Clear Short

Clear Long

Double Narrow

Narrow

Prairie Short

Prairie Long

Ruston Long

Sherwood Short

Sherwood Long

Stockbridge (3-lite)

Stockbridge (4-lite)

Stockford Long

Arched Stockton*

Stockton Short

Stockton Long (4-lite)

Stockton Long (6-lite)

Stockton Long (8-lite)

Stockton Long (8-lite Arched)

Stockton Long (12-lite)

Waterton Short

Waterton Long

Williamsburg Short

Williamsburg Long

Wyndbridge Long
Double Car Window Options
* Available only on Sonoma Panel Design
** Available only on Sonoma Ranch

Arched Stockton Single*

Arched Stockton Double*

Williamsburg Long 4 pc
Wood Grain Impressions™ Bi-directional Finishes

Clear Short

Clear Long

Prairie Short

Prairie Long

Stockbridge (3-lite)

Stockbridge (4-lite)

Stockton Short

Stockton Long (6-lite)

Stockton Long (8-lite)
Stucco Embossed Pinstripe and Flush Panels

Aluminum Full-View

Bubble Lite

Thermolite

Cascade Short

Cathedral Short

Clear Long

Clear Short

Stockton Short

Waterton Short

Williamsburg Short
Not all windows are available on all door sizes. Please cont us for more informatio
Window Availability By Door Panel Style
Short Panel | Vertical Short Panel | Long & Vertical Panel | Flush Panel |
---|---|---|---|
Cascade Short | *Arched Stockton Long | *Arched Stockton Long | *Arched Stockton Long |
Cathedral Short | Ashton Long | Ashton Long | Ashton Long |
Clear Short | Cascade Short & Long | Cascade Long | Cascade Short & Long |
Prairie Short | Cathedral Short & Long | Cathedral Long | Cathedral Short & Long |
Sherwood Short | Clear Short & Long | Clear Long | Clear Short & Long |
Stockton Short | Prairie Short & Long | Prairie Long | **Double Narrow |
Waterton Short | Ruston Long | Ruston Long | **Narrow |
Williamsburg Short (4 pc & 8 pc) | Sherwood Short & Long | Sherwood Long | Prairie Short & Long |
Stockbridge Long (3-Lite) | Stockbridge Long (3-Lite) | Ruston Long | |
Stockbridge Long (4-Lite) | Stockbridge Long (4-Lite) | Sherwood Short & Long | |
Stockford Long | Stockford Long | Stockbridge Long (3-Lite) | |
Stockton Long (4, 6, 8 & 12-Lite) | Stockton Long (4, 6, 8 & 12-Lite) | Stockbridge Long (4-Lite) | |
Stockton Long Arch 8-Lite | Stockton Long Arch 8-Lite | Stockford Long | |
Stockton Short (4-Lite) | Waterton Long | Stockton Long (4, 6, 8 & 12-Lite) | |
Waterton Short & Long | Williamsburg Long (2 pc & 4 pc) | Stockton Long Arch 8-Lite | |
Williamsburg Long (2 pc & 4 pc) | Wyndbridge Long (2 pc, 3 pc, 4 pc, 5 pc) | Stockton Short (4-Lite) | |
Wyndbridge Long (2 pc, 3 pc, 4 pc, 5 pc) | Waterton Short & Long | ||
*Williamsburg Long (2 pc & 4 pc) | |||
*Williamsburg Short (4 pc & 8 pc) | |||
Wyndbridge Long (2 pc, 3 pc, 4 pc) |
Window Placement Options

Double Row Option
(top and intermediate)
Available on Short, Long, Vertical Short, Vertical Long and Flush panels

Vertical Option
left or right)
Available on Short, Long, Vertical Long, and Flush panels

Vertical and Horizontal
(left or right)
Available on Short, Long, Vertical Short, and Flush panels.

All Window Option
Flush panels.

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