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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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  • R704.2

    Exterior Soffit Installation Where the Design Wind Pressure Is 30 psf or Less

    • Up to 30 psf: vinyl or aluminum soffit fastened both ends with intermediate strips over 16 in; fiber-cement 1/4 in; hardboard 7/16 in and plywood 3/8 in nailed 6 in edge, 12 in field.

    International Residential Code, 2024 · Chapter 7, Wall CoveringRead the full text (opens UpCodes in a new tab)

  • R319.5

    Replacement Windows for Emergency Escape and Rescue Openings

    • A replacement escape window is exempt from the size rule if it's the maker's largest standard size that fits and the occupancy isn't changing.

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

  • R802.10

    Wood Trusses

    • Roof trusses are engineered to ANSI/TPI 1, with drawings approved before install and shipped to the site, braced per the drawings or BCSI, and never cut or overloaded without a design professional.

    International Residential Code, 2024 · Chapter 8, Roof-Ceiling ConstructionRead the full text (opens UpCodes in a new tab)

  • R404.5

    Precast Concrete Foundation Walls

    • Precast foundation walls are engineered, approved before install with loads, footing, bearing, SDC and wind speed shown, and carry a third-party inspection label.

    International Residential Code, 2024 · Chapter 4, FoundationsRead 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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