What's the average lifespan of a garage door?

The average lifespan of a garage door, meaning the door panels and hardware excluding opener, depends on material, usage, maintenance, and climate, but typical ranges help plan replacement. On average, a standard steel garage door with proper maintenance lasts 15 to 30 years, with non-insulated builder-grade steel doors lasting 15 to 20 years and higher quality insulated steel doors lasting 20 to 30 years. Wood garage doors last 15 to 20 years with regular painting and sealing to prevent rot and warping, but less if not maintained. Aluminum doors last 20 to 30 years but dent easily. Fiberglass doors last 15 to 20 years. The hardware components have shorter lifespans: torsion springs last 7 to 12 years or 10,000 cycles, extension springs 5 to 10 years, rollers 5 to 15 years depending on material, cables 8 to 15 years, and opener 10 to 15 years. Factors that shorten door lifespan include lack of lubrication, not cleaning tracks, heavy use, coastal salt air causing rust, and water damage from clogged gutters overflowing onto door causing corrosion and rot, especially for wood doors. Extreme temperatures and sun exposure fade finish. Regular maintenance such as lubricating rollers and springs twice a year with silicone, washing door, painting wood doors, tightening bolts, and keeping gutters clean to prevent water intrusion extends lifespan significantly, and annual professional inspection costing 75 to 150 dollars can catch issues early.