Insulated
Sectional Doors
Steel sectional doors from SDI are an attractive solution where strength and insulation are required. These long-lasting door systems offer many years of service for your industrial or commercial facility. Manufactured on a continuous polyurethane production line utilizing the latest in rigid foam t

Why Sectional Doors
Insulated
Rigid polyurethane insulation core delivers superior thermal performance, reducing energy costs in climate-controlled facilities.
Built Strong
Prepainted hot-dip galvanized steel sheets with continuous polyurethane core — engineered to withstand harsh Canadian climates.
Made in Canada
Manufactured, engineered, stocked, and assembled in Canada. Designed to the highest standards for long-lasting performance.
Key Features
- Sections thermally broken, steel-polyurethane-steel sandwich formed by continuous process
- Sections formed with ship lap joint and 16mm (16ga) galvanized steel end-caps
- Continuous internal reinforcement for hardware mounting
- Neoprene bulb weatherstrip with retainer. Two dual finned seals between sections (Optional track mount available)
Why Sectional Doors
Insulated
Rigid polyurethane insulation core delivers superior thermal performance, reducing energy costs in climate-controlled facilities.
Built Strong
Prepainted hot-dip galvanized steel sheets with continuous polyurethane core — engineered to withstand harsh Canadian climates.
Made in Canada
Manufactured, engineered, stocked, and assembled in Canada. Designed to the highest standards for long-lasting performance.