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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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  • M1406.4

    Installation in Concrete or Masonry

    • Radiant systems in concrete or masonry are identified for it, secured per instructions, and don't cross expansion joints unless protected.

    International Residential Code, 2024 · Chapter 14, Heating and Cooling Equipment and AppliancesRead 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)

  • E3702.2

    Branch-Circuit Ampere Rating

    • A branch circuit's rating is its overcurrent device; multi-outlet circuits are 10, 15, 20, 30, 40 or 50 A (NEC 210.18).

    International Residential Code, 2024 · Chapter 37, Branch Circuit and Feeder RequirementsRead 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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