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• R302.4.2

  Membrane Penetrations

  • Steel outlet boxes up to 16 sq in may pierce a rated wall's membrane if they total no more than 100 sq in per 100 sq ft, gaps are 1/8 in or less, and opposite boxes are 24 in apart or otherwise protected.

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

• R702.1

  General

  • Plaster thickness depends on the base: 5/8 in over metal lath, 1/2 in over gypsum lath or masonry for gypsum plaster; cement plaster 3/4 in interior and 7/8 in exterior over wire lath or sheathing.

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

• R318.8

  Ramps

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

• R318.3.3

  Storm and Screen Doors

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

• R606.3.7.1

  Masonry Laid in Running Bond

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

• R608.5.2

  Steel Reinforcement and Anchor Bolts

  • Wall rebar is A615, A706 or A996M; anchor bolts are headed A307 Grade A or F1554 Grade 36 (or threaded A36 rod with a nut), with no J- or L-bolts in the connection details.

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

• R304.2.1

  Required Information

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

• R402.3.1

  Precast Concrete Foundation Materials

  • Precast foundation concrete reaches 5,000 psi at 28 days (5% air if it freezes), with Grade 40 or better rebar and at least 3/4 in of cover.

  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.