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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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  • R506.2

    Post-Tensioned Slab-on-Ground Floors

    • Post-tensioned slabs on expansive or stable soil are designed to PTI DC10.5.

    Local review: Post-tensioned slabs are common in San Antonio's expansive clays; expect an engineered PT design.

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

  • R602.11

    Wall Anchorage

    • Braced wall sills are bolted to the foundation; in SDC D and SDC C townhouses, use 3x3x0.229 in plate washers.

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

  • R702.5

    Other Finishes

    • Wood and hardboard paneling goes on framing at 16 in or less; panels under 1/4 in need a 3/8 in drywall backer.

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

  • R404.1.3.2

    Reinforcement for Foundation Walls

    • Concrete basement walls are braced top and bottom and get a No. 4 bar within 12 in of the top plus one at mid-height (8 ft or less) or at the third points (taller).
    • Vertical bars come from the tables by wall type, thickness, height, backfill and soil; walls retaining 4 ft or more are braced before backfilling, and 'DR' cells need a design.

    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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