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Search the building code.

Every 2024 IRC section and the IBC as it loads, by number or topic, plus the local rules for your city. Free to search.

Detached houses, duplexes and townhouses up to 3 stories with their own exits use the IRC; every other building uses the IBC (IBC 101.2).

A random sample from 1,598 sections for San Antonio, TX, the 2024 IRC

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  • R1003.9.1

    Chimney Caps

    • Masonry chimneys get a sloped concrete, metal or stone cap with a drip edge and a caulked bond break around the liners per ASTM C1283.

    International Residential Code, 2024 · Chapter 10, Chimneys and FireplacesRead the full text (opens UpCodes in a new tab)

  • R1003.17

    Masonry Chimney Cleanout Openings

    • Each flue has a cleanout within 6 in of its base, its top edge at least 6 in below the lowest inlet, at least 6 in tall, with a noncombustible cover; fireplace flues cleanable through the opening are exempt.

    International Residential Code, 2024 · Chapter 10, Chimneys and FireplacesRead the full text (opens UpCodes in a new tab)

  • R306.3.2

    Elevation Requirements

    • In V and Coastal A zones, the underside of the lowest floor framing is at least 1 ft above base flood or at design flood, whichever is higher.
    • Coastal detached accessory buildings below flood level are capped at 100 sq ft, one story, storage or parking.

    International Residential Code, 2024 · Chapter 3, Building PlanningRead the full text (opens UpCodes in a new tab)

  • R502.8.2

    Engineered Wood Products

    • Don't cut, notch or drill trusses, I-joists, glulam, SCL or CLT unless the maker allows it or a design professional accounts for it.

    International Residential Code, 2024 · Chapter 5, FloorsRead the full text (opens UpCodes in a new tab)

Searches all 4,276 IRC 2024 sections, 5,532 IBC 2024 sections and defined terms (Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33 so far) and each city's local rules as they are added. Section numbers and titles from the International Residential Code and International Building Code, 2024 editions, copyrighted by the International Code Council; the IRC's electrical chapters (34 to 43) follow NFPA 70, the National Electrical Code. Requirements are summarized in our words (IRC Chapters 3 to 43, IBC Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33); read the full text at the link on each result. Local values come from each city's published documents.

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