Climbing Harness Retirement Calculator

Based on UIAA Standard 105 guidelines for harness age, usage, and impact history.

⚠

For reference only. These are UIAA maximum guidelines. Always physically inspect your harness before each climbing session. When in doubt, retire it.

UIAA maximum harness age

UsageMax age
Never used10 years
Rarely (few times/yr)7 years
Monthly5 years
Weekly3 years
Daily1 year

Source: UIAA Standard 105 — Harness Inspection & Retirement

Also useful: Check rope retirement → · Check helmet retirement →

Harness safety explained

UIAA Standard 105 — Harnesses

UIAA Standard 105 defines the minimum strength, construction, and labelling requirements for climbing harnesses sold in Europe and internationally. Every harness bearing the UIAA Safety Label has been independently tested and meets these requirements.

What UIAA 105 tests

  • Waist belt strength — minimum 15 kN static load without failure
  • Leg loop strength — minimum 10 kN per leg loop
  • Belay loop strength — tested separately as the primary connection point
  • Buckle retention — buckles must not release under load
  • Fit and adjustment — must stay on the body during a fall simulation

The UIAA test loads are much higher than forces in real falls. A harness that passes testing is extremely strong — but age, UV, moisture, and mechanical wear reduce that strength over time.

Frequently asked questions

When should I retire my climbing harness?

Retire your climbing harness immediately if it has visible damage (frayed webbing, cut straps, damaged stitching, cracked buckles), after any severe fall or impact load, or when it exceeds UIAA maximum age based on usage frequency: 1 year with daily use, 3 years weekly, 5 years monthly, 7 years rarely, 10 years maximum regardless of use. When in doubt, retire it.

How long does a climbing harness last?

UIAA Standard 105 guidelines state maximum lifespans of 1 year for daily use, 3 years for weekly use, 5 years for monthly use, 7 years for occasional use, and 10 years for a harness that has never been used outdoors. These are maximums — physical damage or severe falls require retirement regardless of age.

Can I use a harness after a big fall?

If the fall generated a severe impact load on the harness — particularly through the belay loop — the harness should be inspected carefully or retired. Unlike ropes, harnesses do not have a simple fall factor metric. Any fall that felt unusually hard, resulted in injury, or left visible marks on the harness warrants careful inspection and possible retirement.

What harness damage requires immediate retirement?

Retire immediately if: any load-bearing webbing is cut, frayed through to the core, or shows a flat spot; any stitching bar tack is broken, missing, or significantly worn; any buckle is cracked, bent, or fails to lock reliably; or if the harness has been contaminated with chemicals such as battery acid, bleach, or industrial solvents.

Does an unused harness expire?

Yes. UIAA guidelines recommend retiring harnesses after 10 years from manufacture date regardless of use. Nylon and polyester webbing degrades over time through UV exposure and humidity cycling even in storage. An unused harness that is 10 or more years old should not be used for climbing.

How do I store a climbing harness?

Store harnesses in a bag away from direct sunlight, heat, and chemicals. Avoid storing in car boots where UV, heat, and chemical fumes (fuel, battery acid) can accelerate degradation. Do not hang harnesses on sharp hooks that could create pressure points on webbing. Store in a cool, dry, dark place.