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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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  • 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)

  • R318.2

    Egress Door

    Used in checks
    • Each unit has a side-hinged egress door at least 32 in clear wide and 78 in high that opens from inside without a key.

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

  • R608.5.4

    Reinforcement Installation Details

    • Lap splices run 20 to 45 in and straight development 15 to 34 in by bar size and grade; cover and spacing rules match foundation walls.

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

  • R802.11

    Roof Tie Uplift Resistance

    • Rafters and trusses are tied down for wind uplift, unless uplift is 200 lb or less per connection (on 0.42+ specific gravity framing), or wind is 115 mph or less in Exposure B on 5:12+ roofs up to 32 ft with 24 in spacing.

    International Residential Code, 2024 · Chapter 8, Roof-Ceiling ConstructionRead 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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