{
  "version": "v1",
  "source": "https://craftquantities.com",
  "licence": "CC BY 4.0",
  "licenceUrl": "https://creativecommons.org/licenses/by/4.0/",
  "attribution": "Craft Quantities — craftquantities.com",
  "documentation": "https://craftquantities.com/api/",
  "versioning": "Fields are added, never removed or repurposed, within a version. A breaking change becomes /api/v2/ and v1 keeps being built.",
  "id": "irc",
  "body": "icc",
  "title": "International Residential Code",
  "page": "https://craftquantities.com/standards/icc/irc/",
  "citation": {
    "author": "Craft Quantities",
    "title": "International Residential Code — what it governs",
    "version": null,
    "sourcesChecked": null,
    "url": "https://craftquantities.com/standards/icc/irc/",
    "accessDate": null,
    "accessDateNote": "Add the date you retrieved this. It is deliberately absent: a static file cannot know when you read it, and the build date would be wrong.",
    "permanentVersionedUrl": null,
    "permanentVersionedUrlNote": "Not offered. This site keeps no archive of previous builds, so any such URL would resolve to the current page or to nothing. The version and sourcesChecked fields identify the calculation instead.",
    "formats": {
      "plain": "Craft Quantities. International Residential Code — what it governs. https://craftquantities.com/standards/icc/irc/",
      "apa": "Craft Quantities. (n.d.). International Residential Code — what it governs (undated version) [Reference page]. Retrieved from https://craftquantities.com/standards/icc/irc/",
      "harvard": "Craft Quantities (n.d.) International Residential Code — what it governs (undated version). Available at: https://craftquantities.com/standards/icc/irc/",
      "bibtex": "@misc{craftquantities-standards-icc-irc,\n  author       = {{Craft Quantities}},\n  title        = {International Residential Code — what it governs},\n  howpublished = {\\url{https://craftquantities.com/standards/icc/irc/}},\n}"
    }
  },
  "scope": "The prescriptive code for one- and two-family dwellings and townhouses up to three storeys, covering structure, fire safety, energy, plumbing, mechanical and electrical in one document. Prescriptive is the word that matters: it gives spans, spacings and thicknesses that may be built without an engineer's calculation, for buildings inside its limits. A building outside those limits does not fail the code, it leaves the code's scope and needs a design. Where its provisions and the IBC's overlap, which applies is a question about the building's occupancy and size rather than about the documents. Its energy provisions are the part most often superseded locally: many jurisdictions adopt the IRC for structure and a separate energy code for everything thermal, so two documents govern one wall. It assumes a building of ordinary risk on ordinary ground. High wind, seismic design categories beyond its tables, expansive soils and flood zones all push a dwelling out of its prescriptive path and into engineered design.",
  "publishedEditions": [
    "2024",
    "2021",
    "2018",
    "2015"
  ],
  "cycle": "A new edition every three years.",
  "region": "United States",
  "editionsCitedHere": [
    "2024"
  ],
  "adoption": "not verified for any jurisdiction — this site holds no adoption data",
  "citedBy": [
    {
      "slug": "attic-ventilation-calculator",
      "url": "https://craftquantities.com/calculators/insulation-efficiency/attic-ventilation-calculator/"
    },
    {
      "slug": "baluster-calculator",
      "url": "https://craftquantities.com/calculators/renovation-construction/baluster-calculator/"
    },
    {
      "slug": "box-fill-calculator",
      "url": "https://craftquantities.com/calculators/electrical/box-fill-calculator/"
    },
    {
      "slug": "brick-anchor-spacing-calculator",
      "url": "https://craftquantities.com/calculators/materials-quantities/brick-anchor-spacing-calculator/"
    },
    {
      "slug": "crawl-space-vent-calculator",
      "url": "https://craftquantities.com/calculators/materials-quantities/crawl-space-vent-calculator/"
    },
    {
      "slug": "deck-joist-span-calculator",
      "url": "https://craftquantities.com/calculators/renovation-construction/deck-joist-span-calculator/"
    },
    {
      "slug": "equal-spacing-calculator",
      "url": "https://craftquantities.com/calculators/measurements-conversions/equal-spacing-calculator/"
    },
    {
      "slug": "fireplace-hearth-size-calculator",
      "url": "https://craftquantities.com/calculators/materials-quantities/fireplace-hearth-size-calculator/"
    },
    {
      "slug": "fireplace-mantel-clearance-calculator",
      "url": "https://craftquantities.com/calculators/materials-quantities/fireplace-mantel-clearance-calculator/"
    },
    {
      "slug": "ledger-lag-screw-count-calculator",
      "url": "https://craftquantities.com/calculators/materials-quantities/ledger-lag-screw-count-calculator/"
    },
    {
      "slug": "patio-level-dig-depth-calculator",
      "url": "https://craftquantities.com/calculators/landscaping-outdoor/patio-level-dig-depth-calculator/"
    },
    {
      "slug": "post-hole-concrete-calculator",
      "url": "https://craftquantities.com/calculators/materials-quantities/post-hole-concrete-calculator/"
    },
    {
      "slug": "range-hood-airflow-calculator",
      "url": "https://craftquantities.com/calculators/plumbing-hvac/range-hood-airflow-calculator/"
    },
    {
      "slug": "riser-spread-tolerance-checker",
      "url": "https://craftquantities.com/calculators/renovation-construction/riser-spread-tolerance-checker/"
    },
    {
      "slug": "roof-ice-dam-membrane-calculator",
      "url": "https://craftquantities.com/calculators/materials-quantities/roof-ice-dam-membrane-calculator/"
    },
    {
      "slug": "stair-calculator",
      "url": "https://craftquantities.com/calculators/renovation-construction/stair-calculator/"
    },
    {
      "slug": "stair-drop-cut-calculator",
      "url": "https://craftquantities.com/calculators/renovation-construction/stair-drop-cut-calculator/"
    },
    {
      "slug": "stud-bore-notch-limit-calculator",
      "url": "https://craftquantities.com/calculators/renovation-construction/stud-bore-notch-limit-calculator/"
    },
    {
      "slug": "stud-calculator",
      "url": "https://craftquantities.com/calculators/materials-quantities/stud-calculator/"
    },
    {
      "slug": "wall-tie-density-calculator",
      "url": "https://craftquantities.com/calculators/materials-quantities/wall-tie-density-calculator/"
    }
  ],
  "sections": {
    "R312.1.3": [
      {
        "slug": "baluster-calculator",
        "url": "https://craftquantities.com/calculators/renovation-construction/baluster-calculator/"
      },
      {
        "slug": "equal-spacing-calculator",
        "url": "https://craftquantities.com/calculators/measurements-conversions/equal-spacing-calculator/"
      }
    ],
    "Table E3905.12.2.1": [
      {
        "slug": "box-fill-calculator",
        "url": "https://craftquantities.com/calculators/electrical/box-fill-calculator/"
      }
    ],
    "R602.6": [
      {
        "slug": "stud-bore-notch-limit-calculator",
        "url": "https://craftquantities.com/calculators/renovation-construction/stud-bore-notch-limit-calculator/"
      }
    ],
    "R507.6": [
      {
        "slug": "deck-joist-span-calculator",
        "url": "https://craftquantities.com/calculators/renovation-construction/deck-joist-span-calculator/"
      }
    ],
    "R311.7.5.1": [
      {
        "slug": "riser-spread-tolerance-checker",
        "url": "https://craftquantities.com/calculators/renovation-construction/riser-spread-tolerance-checker/"
      },
      {
        "slug": "stair-drop-cut-calculator",
        "url": "https://craftquantities.com/calculators/renovation-construction/stair-drop-cut-calculator/"
      }
    ],
    "R602.3": [
      {
        "slug": "stud-calculator",
        "url": "https://craftquantities.com/calculators/materials-quantities/stud-calculator/"
      }
    ],
    "R403.1.4": [
      {
        "slug": "post-hole-concrete-calculator",
        "url": "https://craftquantities.com/calculators/materials-quantities/post-hole-concrete-calculator/"
      }
    ],
    "R311.7.5": [
      {
        "slug": "stair-calculator",
        "url": "https://craftquantities.com/calculators/renovation-construction/stair-calculator/"
      }
    ],
    "R703.8.4.1": [
      {
        "slug": "brick-anchor-spacing-calculator",
        "url": "https://craftquantities.com/calculators/materials-quantities/brick-anchor-spacing-calculator/"
      }
    ],
    "R905.1.2": [
      {
        "slug": "roof-ice-dam-membrane-calculator",
        "url": "https://craftquantities.com/calculators/materials-quantities/roof-ice-dam-membrane-calculator/"
      }
    ]
  }
}