Search the building code.

• R606.9

  Allowable Stresses

  • Masonry compressive stress stays within Table R606.9 values, using the weakest material in a mixed wall, and facing units carrying load are at least 1-1/2 in thick.

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

• R606.12.3.2

  Minimum Reinforcement Requirements for Masonry Walls

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

• R318.7.12

  Alternating Tread Devices

  • Alternating tread devices can't be egress, except for lofts and mezzanines of 200 sq ft or less that don't serve as the only route to a kitchen or bath.

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

• R904

  Materials

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

• R310.1.2

  Installation

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

• R905.9.1

  Slope

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

• R603.9

  Structural Sheathing

  • Steel walls are sheathed on every exterior surface with 7/16 in OSB or 15/32 in plywood, and full-height panels at least 48 in wide make up a set share of each wall, never under 20%.

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

• R404.1.9.2

  Masonry Piers Supporting Floor Girders

  • Piers under girders are at least 12 in, and no taller than 10 ft under interior walls or 4 ft under exterior walls.

  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.