Insulated Sectional Steel Door

Wayne Dalton's ThermoMark™ Models 5150 and 5200 are the ideal choice if you're looking for a commercial door that has a combination of strength and insulation, but also looks great on most buildings.  Foamed-in-place polyurethane insulation helps improve thermal efficiency of a building, offering yer round comfort while also helping to provide a quieter door operation. 

ThermoMark™ Models 5150 and 5200 are manufactured using our patented, continuous foamed-in-place technology, in which the polyurethane core is securely bonded to hot-dipped galvanized inner and outer skins.  This process gives these doors outstanding thermal, strength, and bonding characteristics while creating a door that is significantly more efficient than conventional insulated steel doors.  A designed-in joint seal also helps save energy by preventing air filtration.

Features such as the 18-gauge steel end caps give these doors increased rigidity, while the factory finished interior and exterior hot-dipped, galvanized skins make installation easier, add life to the door and provide greater durability.  ThermoMark™ 5150 and 5200 also feature hardware plates at all fastener points to add durability and extend the life of the door.

These doors are offered in a wide array of colors and panel designs that give these doors the beauty and appeal of a residential door but meet the size and strength requirements needed for a commercial or industrial application.

Door Options

Panel Options:




Sonoma Ranch*


Stucco-Embossed Pinstripe

Colonial Window Options:

Clear 1

Stockton 1

Williamsburg 1

Reflections Brass

Cathedral 1

Majestic Brass

Reflections Leaded

Cascade 1

Sherwood 1

Majestic Leaded

Waterton 1

Ranch Window Options:

Clear 2

Cathedral 2

Majestic Leaded 2

Sherwood 2

Waterton 2

Reflections Leaded 2

Majestic Brass 2

Reflections Brass 2

Cascade 2


Stockton 2

Williamsburg 2

Sonoma Window Options:

Clear 1

Cathedral 1

Cascade 3

Stockton 3


Waterton 3

Clear 3

Cascade 1

Stockton 1

Arched Stockton

Waterton 1

Sonoma Ranch Window Options:

Arched Stockton 4

Ruston 4

Stockford 4

Stockbridge 4 (8-Lite)

Ashton 4

Sherwood 4

Stockton 4 (8-Lite)

Waterton 4

Cascade 4

Cathedral 4

Clear 4

Stockbridge 4 (3-Lite)

Stockbridge 4 (4-Lite)

Stockton 4 (4-Lite)

Stockton 4 (8-Lite Arched)

Stockbridge 4 (12-Lite)

Williamsburg 4

Stockton 4 (6-Lite)

Stockton 4 (12-Lite)

Wyndbridge 4

Stucco-Embossed Pinstripe and Flush Window Options:

Clear 1


Stockton 1

Cathedral 1

Reflections Leaded

Aluminum Full View

Majestic Leaded

Waterton 1

Clear 3

Cascade 1

Majestic Brass

Reflections Brass

Williamsburg 1

Double Car Window:

*Available only on Model 5150

Optional Window Placement:

Horizontal Windows shown with Clear 3 windows

Vertical Windows shown with Clear 3 windows

All Windows shown with Clear 3 windows

Windows may be arranged vertically or horizontally on Colonial, Ranch and Contemporary designs.  Windows placed in the bottom section of a door must use DSB 1/8", tempered, or 1/2" insulated glass.  All Window option is only available on Model 5150 Flush panel with Clear 1 or Clear 3 windows.  Not all windows available on all door sizes.  Please contact us for further information.

Options & Accessories:

Jamb seal

High cycle springs (25k, 50k, 100k)

3" track

Chain hoist operation

Motor operation

Broken cable devices

Sensing edges

Photo eyes

Special track designs


Impact Panel:

Wayne Dalton's optional Impact Section replaces the traditional bottom section on doors exposed to damage from forklifts and other warehouse traffic.

Reduces downtime and costly repairs

Impact-Resistant composite skins surround an expanded polystyrene core

Fully adaptable to multiple door thicknesses with hinge and section adapters to provide a superior fit

Available for 21" and 24" sections

Available from 8'2" to 16'2" wide in one-foot increments

*Static and Impact Wind Load designs are certified by the state of Florida (FBC), Miami Dade (NOA), and the Texas Department of Insurance (TDI), and the designs are compliant with the 2015 IBC.

Highest Quality Standards

Max Width: 20' 2" (5150) and 26' 2" (5200)

Max Height: 20' 1"

27-gauge exterior steel

Polyurethane insulation, R-value* = 12.12 (5150) and 16.22 (5200)

1-3/8" Section Thickness (5150) and 1-7/8"

Continuous steel strips for hinge attachment

Variety of colors and two bi-directional wood grain finishes (5150)

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

Model Comparison Chart

IECC® Compliant:


The ThermoMark™ 5150 and 5200 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.  ThermoMark™ 5150 and 5200 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.






Mission Oak *

White Pinstripe

Almond Pinstripe

Taupe Pinstripe


Golden Oak Stain*

Walnut Stain*

Brown Pinstripe

Black Pinstripe

Model 5150 Sonoma and Sonoma Ranch panel only

Standard Paint options are available for Colonial, Ranch, Sonoma, Flush

Stucco finishes are only available on the Stucco-Embossed Pinstripe panel and Model 5200

Custom Color:

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

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).  Please reach out to us to discuss actual color samples to match your preferences.

Contact Information

2 Lukens Dr.

New Castle, DE 19720

Suite 600

Call Us: 1-888-927-3835


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