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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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  • R1003.16

    Inlet

    • Inlets enter the chimney from the side through a fireclay, refractory or metal thimble that holds the connector and keeps it out of the liner.

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

  • R507.9.1.3

    Ledger to Band Joist Details

    • Ledger lag screws and bolts are 1/2 in, spaced per the table by joist span and load, with lag holes drilled 1/2 in through the ledger and 5/16 to 3/8 in into the band.
    • Ledger fasteners stay 2 in from the ledger top and ends and 3/4 in from its bottom, staggered, with rows 1-5/8 to 5 in apart; in the band, 3/4 in from top and 2 in from bottom.

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

  • R610.3

    Materials

    • SIPs meet ANSI/APA PRS 610.1, with No. 2 SPF framing and the maker's steel screws (0.188 in shank, 0.620 in head, 1 in into wood).

    International Residential Code, 2024 · Chapter 6, Wall ConstructionRead the full text (opens UpCodes in a new tab)

  • R305.1

    Subterranean Termite Control Methods

    • In termite areas, use one or more of soil treatment, baiting, treated or resistant wood, physical barriers, or steel framing.

    International Residential Code, 2024 · Chapter 3, Building PlanningRead 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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