Section 311 — STORAGE GROUP S
2025 California Building Code (Title 24, Part 2) · 2025 edition · ingested 2026-07-07 · California
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311.1 Storage Group S. ¶
311.1 Storage Group S. Storage Group S occupancy includes, among others, the use of a building or structure, or a portion thereof, for storage that is not classified as a hazardous occupancy. 311.1.1 Accessory storage spaces. A room or space used for storage purposes that is accessory to another occupancy shall be classified as part of that occupancy. 311.1.2 Combustible storage. High-piled stock or rack storage, or attic, under-floor and concealed spaces used for storage of combustible materials, shall be in accordance with Section 413.
311.2 Moderate-hazard storage, Group S-1. ¶
311.2 Moderate-hazard storage, Group S-1. Storage Group S-1 occupancies are buildings occupied for storage uses that are not classified as Group S-2, including, but not limited to, storage of the following: Aerosol products, Levels 2 and 3, aerosol cooking spray, plastic aerosol 3 (PA3) Aircraft hangar (storage and repair) Bags: cloth, burlap and paper Bamboos and rattan Baskets Belting: canvas and leather Beverages over 20-percent alcohol content Books and paper in rolls or packs Boots and shoes Buttons, including cloth covered, pearl or bone Cardboard and cardboard boxes Clothing, woolen…
311.3 Low-hazard storage, Group S-2. ¶
311.3 Low-hazard storage, Group S-2. Storage Group S-2 occupancies include, among others, buildings used for the storage of noncombustible materials such as products on wood pallets or in paper cartons with or without single thickness divisions; or in paper wrappings. Such products are permitted to have a negligible amount of plastic trim, such as knobs, handles or film wrapping. Group S-2 storage uses shall include, but not be limited to, storage of the following: Asbestos Beverages up to and including 20-percent alcohol Cement in bags Chalk and crayons Dairy products in nonwaxed coated…