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Life-remaining diagnostic

How long has your
garage door spring got left?

Standard torsion and extension springs are rated for 10,000 cycles, one open + close = one cycle. At 4 open-close cycles per day that's about 6.8 years. The diagnostic below estimates your cycles used from door age and openings per day, applies a failure-indicator overlay for visible signs of fatigue, and returns whether you're safe, watching, or due for replacement.

your spring & usage

Spring type

Door age (years)

Openings per day

Cycles used (best estimate)

Or leave default, calculator estimates from age × openings.


Failure indicators (tick all that apply)

spring life remaining

Approaching end of rated life, watch for symptoms.

More than 60% of rated cycles used. Watch for slowing, uneven lift, or new noises. Budget for replacement in the next 12-24 months.

Cycles used

7,500

of 10,000 rated

Years remaining

1.7

at 4 cycles/day

life used

75% of rated cycles used · 0 of 4 failure indicators present

Rated cycles: standard torsion / extension springs 10,000 cycles, high-cycle upgrades 20,000-25,000. One cycle = one open + one close. Rust, uneven lift, visible coil gap, and new noises each add ~15% to the effective risk score because they indicate metallurgical fatigue beyond pure cycle count. Source: DASMA (Door & Access Systems Manufacturers Association) spring lifecycle data, cross-referenced with manufacturer ratings.

Updated 2026-04-27