The lifespan of a garage door cable, which is the steel cable that works with springs to lift the door evenly, is typically similar to or slightly longer than the springs but depends heavily on use and maintenance. On average, standard galvanized steel garage door cables last 8 to 15 years with normal residential use of 2 to 4 cycles per day. High-quality aircraft-grade or stainless steel cables can last 15 to 20 years or more. Each open and close cycle causes the cable to wind around drums on torsion systems or slide through pulleys on extension systems, leading to gradual fraying and fatigue. Factors that shorten lifespan include lack of lubrication on pulleys, drums, and rollers that causes friction, rust and corrosion from moisture, especially from clogged gutters above the garage that drip water onto the cables, cables rubbing against sharp track edges or damaged drums, and an unbalanced door due to weak springs that puts uneven tension on cables. Unlike springs which are rated for a set number of cycles like 10,000, cables do not have a strict cycle rating but should be inspected every six months for fraying, kinking, rust, or broken strands. It is best practice to replace cables when you replace springs every 7 to 12 years, as they have similar wear and replacing both prevents a future failure that could cause the door to fall.
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