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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 4,296 sections for San Antonio, TX, the 2024 IRC

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  • E3406.5

    Individual Conductor Insulation

    • Current-carrying conductors are insulated with types such as THHN, THWN, XHHW, USE or UF identified for the use (NEC 310.10, 310.4).

    International Residential Code, 2024 · Chapter 34, General RequirementsRead the full text (opens UpCodes in a new tab)

  • R1001.5.1

    Steel Fireplace Units

    • A steel fireplace unit may be built into masonry per its listing or this section: 1/4-in steel firebox, air-circulating chamber ducted indoors, 8 in total encasement of which 4 in is solid masonry or concrete, metal or masonry ducts.

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

  • E4303.2.1

    Type CL2P Cables

    • Cable in ducts, plenums and other air-handling spaces is CL2P, low-smoke and fire-resistant (NEC 722.179(A)(1)).

    International Residential Code, 2024 · Chapter 43, Class 2 Remote-Control, Signaling and Power-Limited CircuitsRead the full text (opens UpCodes in a new tab)

  • P3006.3

    Horizontal Offsets Below the Lowest Branch

    • Below the lowest branch, offsets of 45 degrees or less need no size change; steeper offsets and the stack below are sized as building drain.

    International Residential Code, 2024 · Chapter 30, Sanitary DrainageRead 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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