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• 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 406.5.4.1

  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)

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.