Section 2208A — STEEL DECK
2025 California Building Code (Title 24, Part 2) · 2025 edition · ingested 2026-07-07 · California
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2208 A .1 Steel decks. The design and construction of cold-formed steel floor and roof decks and composite slabs of concrete and steel deck shall be in accordance with SDI SD. The design of cold-formed steel diaphragms shall be in accordance with additional provisions of AISI S310, as applicable. The base material thickness of steel deck shall not be less than 0.0359 inch (0.9 mm) (20 gage). Exception: [DSA-SS] For single-story open structures, the minimum deck thickness may be waived if the steel roof deck need not be used as the diaphragm and there are no suspended hangers or bracing for…