Insulated Sectional Steel Doors

The premier line of insulated sectional steel doors available today: Wayne Dalton’s Sectional Steel Doors are an ideal choice for applications that demand the highest levels of thermal efficiency, air infiltration, and wind load resistance. These top qualities, sectional steel doors provide energy efficiency and reliable service under demanding conditions, making them ideal for use in municipal buildings, warehouses, and shipping dock applications, or wherever value and energy efficiency is needed.

Insulated Sectional Steel Doors, Wayne-Dalton of Windsor
Durable • Exceptional Thermal Efficiency • Long Lasting Performance

Whether your project calls for first-rate thermal efficiency, wind load requirements, or requires a custom oversized door, we have the door for you. From our extremely efficient and durable Thermospan® line of doors to our economical steel sectional doors, every door is engineered and built to provide ultimate quality.

Wayne Dalton’s Commercial Insulated Sectional Steel Doors

Industry Leader in Commercial & Industrial Garage Door Solutions!

With Wayne Dalton, you get more insulation choices, including the highest R-value rating available in a standard design and the widest range of design and performance options in any commercial sectional door offering.

ThermoMark™ Series

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 on the interior of the door. With residential or commercial exterior design options, ThermoMark™ doors are aesthetically pleasing and come with a variety of color and window options for any application. ThermoMark™ doors are also the preferred door for wind load applications.

Insulated Sectional Steel Doors - Wayne-Dalton of Windsor, Garage Doors
ThermoMark™ 530

ThermoMark™ Model 530 is the strongest and most thermally efficient door in the Wayne Dalton product line-up. Premium 3” thick foamed-in-place polyurethane insulation features continuous steel strips for flexibility in hinge placement.

R-Value – 26

Max Width – 40  Max Height:  224′

ThermoMark™ 5150 5155,  5255 & 5200

ThermoMark™ insulated doors help improve thermal efficiency and provide the building’s occupants with year-round comfort. Insulated doors combine strength, insulation, and aesthetic appeal for commercial projects requiring all three features. Hot-dipped galvanized steel and rugged construction will give years of solid performance for the most demanding conditions.

R-Value

Models 5150 & 5155: 12.12

Models 5200 & 5255: 16.22

Max Width – up to 26’2”    Max Height:  20’ 1.”

Insulated Sectional Steel Doors, Wayne-Dalton of Windsor
R-value* Section Thickness Integrated Struts Max Standard Width Max Standard Height
ThermoMark™ 530 26 3″ No 40’2″ 24′
ThermoSpan™ 200-20 17.5 2″​ Yes 24’2″​ 16’1″​
ThermoSpan™ 200 17.5 2″​ Yes 40’2″​ 32’1″​
ThermoMark™ 5150 & 5200 5150 = 12.12

5200= 16.22

1-3/8″

1-7/8″

No 20’2″

26’2″

20’1″​
ThermoMark™ 5155 & 5255 5155 = ​12.12

5255 = 16.22

1-3/8″

1-7/8″

No 20’2″

26’2″

20’1″​
ThermoSpan™ 150 14.16 1-1/2″ Yes 26’2″ 20’1″​
ThermoSpan™ 125 10.79 7/8″ Yes 18’4″ 16’1″​

Thermospan® Models 125, 150, 200, 200-20

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. Thermospan® doors feature integral roll-formed struts, providing the highest strength-to-weight ratios. And the pre-painted, hot-dipped galvanized steel skins contribute to a long, maintenance-free life. Optional wind load engineering makes them ideal even in hurricane-prone areas

Insulated Sectional Steel Doors - Wayne-Dalton of Windsor, Garage Doors
Thermospan® 200

Max Width – 40’2″

Max Height: 32’1″

R-Value -17.5

This sectional door provides polyurethane thermal efficiency for low maintenance costs with an embossed stucco exterior for strength.

ThermoMark Insulated Sectional Steel Door 530
Thermospan® 200-20

Max Width – 24’2″

Max Height: 16’1″

R-Value -17.5

This energy-conscious, sectional door offers premium thermal efficiency with a 20-gauge flush exterior for excellent durability.

nsulated Sectional Steel Door Model 150 - Wayne -Dalton of Windsor
Thermospan® 150

Max Width – 26’2″

Max Height: 20’1″

R-Value – 14.16

This insulated, sectional steel door provides thermal efficiency when value is important, and rigid durability can’t be compromised.

Insulated Sectional Steel Doors - Wayne-Dalton of Windsor, Garage Doors
Thermospan® 125

Max Width – 18’4”

Max Height: 16’1″

R-Value – 10,79

This insulated, sectional, steel door provides higher thermal efficiency along with rigidity and strength to cut your total costs.

Call us today at (519) 735-7790

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Wayne Dalton Sales Center of Windsor – 13425 Desro Dr, Tecumseh, ON N8N 2L9, Canada

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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.