{
  "page": "/us/lifespan/garage-door-spring",
  "built_from": "data/lifespan/facts/garage-door-spring.json",
  "rows": [
    {
      "type": "Residential springs",
      "measure": "Amarr estimate; usage and maintenance conditional",
      "value": 7,
      "unit": "years; at least",
      "source": "Amarr, Your Complete Guide to Garage Door Springs",
      "url": "https://blog.amarr.com/your-complete-guide-to-garage-door-springs",
      "data_years": "article dated February 27, 2023; no study data years published",
      "read": "2026-11-03",
      "area": "US residential garage doors",
      "n": "not published by the source",
      "se_points": null,
      "fact_id": "spring-amarr-seven-years"
    },
    {
      "type": "Torsion springs",
      "measure": "Amarr estimate",
      "value": 7,
      "unit": "years",
      "source": "Amarr, Your Complete Guide to Garage Door Springs",
      "url": "https://blog.amarr.com/your-complete-guide-to-garage-door-springs",
      "data_years": "article dated February 27, 2023; no study data years published",
      "read": "2026-11-03",
      "area": "US residential garage doors",
      "n": "not published by the source",
      "se_points": null,
      "fact_id": "spring-amarr-torsion-years"
    },
    {
      "type": "Whole-door inspection",
      "measure": "Clopay recommended interval",
      "value": 1,
      "unit": "year",
      "source": "Clopay, Garage Door Safety Checklist",
      "url": "https://www.clopaydoor.com/residential/buyingguide/garage-door-safety-checklist",
      "data_years": "undated manufacturer guidance; no study data years published",
      "read": "2026-11-03",
      "area": "US residential garage doors",
      "n": "not published by the source",
      "se_points": null,
      "fact_id": "spring-clopay-annual-inspection"
    }
  ]
}