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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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  • R502.11

    Floor Framing Supporting Guards

    • Floor edges carrying guards up to 44 in tall follow the edge-framing details or are engineered; truss or I-joist edges must account for guard loads.

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

  • R309.2

    One- And Two-Family Dwellings Automatic Sprinkler Systems

    • The model code requires sprinklers in new one- and two-family homes; additions to unsprinklered homes are exempt.

    Local review: Texas law bars cities from requiring sprinklers in one- and two-family homes; confirm San Antonio deletes this before enforcing.

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

  • R804.3.5

    Framing of Openings in Roofs and Ceilings

    • Steel roof openings have headers 4 ft or shorter, matching the adjacent members, joined to trimmers with four 2x2 clips and four No. 8 screws per leg.

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

  • R608.3

    Concrete Wall Systems

    • Concrete walls are flat (4 in or more), waffle-grid or screen-grid (6 in or more), meeting the core sizes and weights in Table R608.3; flat walls stay within -1/2 to +1/4 in of nominal.

    International Residential Code, 2024 · Chapter 6, Wall 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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