Insulated Sectional Overhead Doors

Solidly constructed for reliable performance the insulated sectional steel back door is perfect for commercial and industrial applications.
Insulated sectional overhead doors. Our model 418 insulated sectional steel doors are built for exceptional strength and maximum life. The thermacore sectional door model 596 features one of the best overall air infiltration ratings in the industry as well as a class 26 sound transmission rating. The thermacore sectional door model 515 and model 525 are engineered to withstand h igher design pressure than our other thermacore models.
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. Ideal for heavy duty applications where both thermal efficiency and sound suppression are desirable. Extra heavy duty thermacore insulated sectional steel doors.
Our design provides high strength at an excellent value featuring 16 20 24 and nominal 24 gauge ribbed steel. Superior panel strength and a heavy duty tight fitting 2 51 mm track combine to meet local windloading requirements. Three layer sandwich construction with inner and outer galvanized steel provides durability and reliability.
The insulated sectional steel door model 418 is a high quality heavy duty door that provides protection against hot and cold environments. Fabricated of 16 gauge flush galvanized steel exterior these 2 51 mm thick doors offer an r value of 7 35.