For Detroit winters, the brands that hold up are Clopay (R-16 Intellicore insulation), Amarr (24-gauge steel with a powder-coated finish), and Wayne Dalton (affordable and reliable). Whatever brand you choose, go with R-12 or R-16 insulation minimum, galvanized steel hardware, and a wind load rating suited to Michigan weather. Anything less and you're paying twice within five years.

Clopay Doors

Clopay's Intellicore line uses a polyurethane foam core injected between two steel skins, giving it an R-16 rating and a rigid feel that holds up in freeze-thaw conditions. What you get:

R-16 polyurethane foam core insulation
24-gauge steel construction
Grooved panel design adds structural strength
Good wind load rating for Michigan winters

Amarr Doors

Amarr builds durable steel sectional doors with a focus on rust resistance. That matters in Detroit where road salt spray reaches your garage more than people realize: