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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).

22 sections matching “IBC 406.5” for San Antonio, TX, the 2024 IRC

  • IBC 406.5.2

    Openings

    • Openings on two or more sides total at least 20% of each tier's perimeter wall area, along 40% of the perimeter; interior walls 20% open.

    International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

  • IBC 406.5.3

    Mixed occupancies and uses

    • Mixed uses follow 402.4.2.3, 406.5.11, 508.1, 510.3, 510.4 and 510.7.

    International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

  • IBC 406.5.4

    Area and height

    • Open garage area and height follow Chapter 5 for S-2, or Table 406.5.4 for single use: e.g. IIA 50,000 sq ft per tier and 10 tiers (ramp access), IIB 8, IV 4.

    Works withIBC 508.1

    International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

  • IBC 406.5.5

    Area and height increases

    • Sides open on ¾ of the perimeter add 25% area and one tier; fully open adds 50% and one tier; Type II fully open under 75 ft is unlimited in area.

    International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

  • IBC 406.5.7

    Means of egress

    • Garages open to the public follow Chapter 10; attendant-only garages need two exit stairs at least 36 in wide.

    Works withIBC Chapter 10

    International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

  • IBC 406.5.9

    Enclosure of vertical openings

    • Vertical openings needn't be enclosed except as 406.5.7 requires.

    International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

  • IBC 406.5.11

    Prohibitions

    • Open garages may not have repair work, buses or trucks, closed-off openings or fuel dispensing.

    International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

  • IBC 406.5.2.1

    Openings below grade

    • Below-grade ventilation openings need clear space outside of 1½ × the opening depth.

    International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

  • IBC 406.5.4.1

    Single use

    • Garages only for private vehicles may use Table 406.5.4; ground tier may include 1,000 sq ft of office and toilets; each 9 ft 6 in of spiral counts as a tier.

    International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

  • IBC 510.3

    Group S-2 enclosed parking garage with Group S-2 open parking garage above

    • A one-story Type I/II enclosed garage under an open garage is a separate building for construction type, with area ratios ≤ 1, tiers per Table 406.5.4 and up to 1,000 sq ft of office/waiting/toilet.

    Works withIBC 406.5.4

    International Building Code, 2024 · Chapter 5, General Building Heights and AreasRead the full text (opens UpCodes in a new tab)

  • IBC 510.7

    Open parking garage beneath Groups A, I, B, M and R

    • An open garage under A, I, B, M or R follows 406.5 limits; the upper part follows 503, with height measured from grade including the garage.

    Works withIBC 406.5IBC 503

    International Building Code, 2024 · Chapter 5, General Building Heights and AreasRead 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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