If you’re shopping for a steel-insulated garage door to boost your home’s energy efficiency, security, and curb appeal, understanding its key specifications is critical to making the right choice. Whether you’re a homeowner upgrading an old door, a contractor selecting products for a project, or a retailer creating product listings, clarity on the door’s technical details helps you compare options, meet local building codes, and ensure long-term performance. Below are the essential Parameters for steel-insulated garage doors to guide your decision-making:

Material	Galvanized steel+polyurethane insulated, EPDM rubber seal, PE protective film
VisSafety Optional	Spring broken device,Cable broken device,Photocell,Warning light
Door panel	40mm/80mm thickness
Steel thickness	1 3/4inch, 2inch thick
Panel design	Finger-protection
Hardware	2''galvanized hardware,3''galvanized hardware,Torsion,Tension,Rear spring type
Panel Color	Standard: RAL9016 White, Optional: RAL7016 Grey, RAL9017 Black, RAL8017 Brown, RAL9006 Silver, Black Flush w/ Vertical Windows wooden color etc.
Panel width	Standard 400mm/500mm/535mm/550mm/600mm
Panel weight	8.3kg/m2-10.2kg/m2
Density	45+2/45-2kg/m3