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• R324.4.2

  Glazing Adjacent to Doors

  • Glass beside a door is hazardous if its bottom is under 60 in and it's within 24 in of the door edge, or on the hinge side of an in-swinging door.

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

• R905.2.8.4

  Other Flashing

  International Residential Code, 2024 · Chapter 9, Roof AssembliesRead the full text (opens UpCodes in a new tab)

• R806.2

  Minimum Vent Area

  • Attic vents total 1/150 of the attic floor area, or 1/300 when 40-50% of it is high vents within 3 ft of the ridge (plus a ceiling vapor retarder in zones 6-8).

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

• R318.7.11

  Special Stairways

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

• R301.1.2

  Construction Systems

  • Prescriptive rules assume platform or balloon framing; other systems need equivalent force-transfer detailing.

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

• R606.12.2.3.1

  Connections to Masonry Shear Walls

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

• R905.7.1

  Sheathing Requirements

  International Residential Code, 2024 · Chapter 9, Roof AssembliesRead the full text (opens UpCodes in a new tab)

• R507.7

  Decking

  • Joist spacing for 5/4 wood decking is 12 in (single span) or 16 in (multiple), 2 in decking 24 in; diagonal boards closer; each board gets two nails or screws per joist.

  International Residential Code, 2024 · Chapter 5, FloorsRead 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.