{
  "rows": [
    {
      "type": "Conditional pressure-treated decking estimate in August 2000 guide",
      "measure": "Conditional pressure-treated decking estimate in August 2000 guide",
      "value": "15",
      "value_high": "",
      "unit": "years",
      "source": "HUD, The Rehab Guide, Volume 9: Site Work (August 2000)",
      "url": "https://www.huduser.gov/portal/Publications/pdf/sitework.pdf",
      "data_years": "August 2000 guide; data years not published",
      "read": "2026-11-04",
      "area": "US residential decking guidance",
      "n": "not published by the source",
      "se_points": "",
      "fact_id": "ptw-hud-decking-15"
    },
    {
      "type": "Water-repellent interval attached to historical decking estimate",
      "measure": "Water-repellent interval attached to historical decking estimate",
      "value": "2",
      "value_high": "",
      "unit": "years between applications",
      "source": "HUD, The Rehab Guide, Volume 9: Site Work (August 2000)",
      "url": "https://www.huduser.gov/portal/Publications/pdf/sitework.pdf",
      "data_years": "August 2000 guide; data years not published",
      "read": "2026-11-04",
      "area": "US residential decking guidance",
      "n": "not published by the source",
      "se_points": "",
      "fact_id": "ptw-hud-water-repellent-two"
    },
    {
      "type": "Low-creosote test posts, estimated durability",
      "measure": "Low-creosote test posts, estimated durability",
      "value": "54",
      "value_high": "",
      "unit": "years",
      "source": "USDA Forest Service, Long-Term Durability of Pressure-Treated Wood in a Severe Test Site (2013)",
      "url": "https://research.fs.usda.gov/treesearch/43563",
      "data_years": "2013 study; data years not published",
      "read": "2026-11-04",
      "area": "southern Mississippi test site",
      "n": "not published by the source",
      "se_points": "",
      "fact_id": "ptw-usda-creosote-posts-54"
    },
    {
      "type": "Low-retention copper-naphthenate test posts, estimated longevity",
      "measure": "Low-retention copper-naphthenate test posts, estimated longevity",
      "value": "65",
      "value_high": "",
      "unit": "years",
      "source": "USDA Forest Service, Long-Term Durability of Pressure-Treated Wood in a Severe Test Site (2013)",
      "url": "https://research.fs.usda.gov/treesearch/43563",
      "data_years": "2013 study; data years not published",
      "read": "2026-11-04",
      "area": "southern Mississippi test site",
      "n": "not published by the source",
      "se_points": "",
      "fact_id": "ptw-usda-copper-posts-65"
    },
    {
      "type": "Test specimens excluded in-service mechanical loads and wear",
      "measure": "Test specimens excluded in-service mechanical loads and wear",
      "value": "",
      "value_high": "",
      "unit": "",
      "source": "USDA Forest Service, Long-Term Durability of Pressure-Treated Wood in a Severe Test Site (2013)",
      "url": "https://research.fs.usda.gov/treesearch/43563",
      "data_years": "2013 study; data years not published",
      "read": "2026-11-04",
      "area": "southern Mississippi test site",
      "n": "not published by the source",
      "se_points": "",
      "fact_id": "ptw-usda-study-limit"
    },
    {
      "type": "Meaning of ground-contact use for maker products",
      "measure": "Meaning of ground-contact use for maker products",
      "value": "",
      "value_high": "",
      "unit": "",
      "source": "The lumber maker YellaWood, pressure-treated lumber FAQ",
      "url": "https://www.yellawood.com/resources/product-education/faqs-about-pressure-treated-lumber/",
      "data_years": "undated guidance; data years not published",
      "read": "2026-11-04",
      "area": "US product guidance",
      "n": "not published by the source",
      "se_points": "",
      "fact_id": "ptw-maker-ground-contact"
    },
    {
      "type": "Maker explanation of splitting and checking",
      "measure": "Maker explanation of splitting and checking",
      "value": "",
      "value_high": "",
      "unit": "",
      "source": "The lumber maker YellaWood, pressure-treated lumber FAQ",
      "url": "https://www.yellawood.com/resources/product-education/faqs-about-pressure-treated-lumber/",
      "data_years": "undated guidance; data years not published",
      "read": "2026-11-04",
      "area": "US product guidance",
      "n": "not published by the source",
      "se_points": "",
      "fact_id": "ptw-maker-moisture-splits"
    },
    {
      "type": "Maker care guidance for appearance and checking",
      "measure": "Maker care guidance for appearance and checking",
      "value": "",
      "value_high": "",
      "unit": "",
      "source": "The lumber maker YellaWood, pressure-treated lumber FAQ",
      "url": "https://www.yellawood.com/resources/product-education/faqs-about-pressure-treated-lumber/",
      "data_years": "undated guidance; data years not published",
      "read": "2026-11-04",
      "area": "US product guidance",
      "n": "not published by the source",
      "se_points": "",
      "fact_id": "ptw-maker-periodic-care"
    },
    {
      "type": "Surface mold distinguished from decay protection",
      "measure": "Surface mold distinguished from decay protection",
      "value": "",
      "value_high": "",
      "unit": "",
      "source": "The lumber maker YellaWood, pressure-treated lumber FAQ",
      "url": "https://www.yellawood.com/resources/product-education/faqs-about-pressure-treated-lumber/",
      "data_years": "undated guidance; data years not published",
      "read": "2026-11-04",
      "area": "US product guidance",
      "n": "not published by the source",
      "se_points": "",
      "fact_id": "ptw-maker-surface-mold"
    },
    {
      "type": "Maker coating-readiness observation",
      "measure": "Maker coating-readiness observation",
      "value": "",
      "value_high": "",
      "unit": "",
      "source": "The lumber maker YellaWood, pressure-treated lumber FAQ",
      "url": "https://www.yellawood.com/resources/product-education/faqs-about-pressure-treated-lumber/",
      "data_years": "undated guidance; data years not published",
      "read": "2026-11-04",
      "area": "US product guidance",
      "n": "not published by the source",
      "se_points": "",
      "fact_id": "ptw-maker-coating-readiness"
    },
    {
      "type": "Maker fastener recommendation",
      "measure": "Maker fastener recommendation",
      "value": "",
      "value_high": "",
      "unit": "",
      "source": "The lumber maker YellaWood, pressure-treated lumber FAQ",
      "url": "https://www.yellawood.com/resources/product-education/faqs-about-pressure-treated-lumber/",
      "data_years": "undated guidance; data years not published",
      "read": "2026-11-04",
      "area": "US product guidance",
      "n": "not published by the source",
      "se_points": "",
      "fact_id": "ptw-maker-fasteners"
    }
  ]
}