Section 8 — 503 — ESCAPE OR RESCUE WINDOWS AND DOORS
2025 California Historical Building Code (Title 24, Part 8) · 2025 edition · ingested 2026-07-06 · California
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Basements in dwelling units and every sleeping room below the fourth floor shall have at least one openable window or door approved for emergency escape which shall open directly into a public street, public way, yard or exit court. Escape or rescue windows or doors shall have a minimum clear area of 3.3 square feet (0.31 m [2] ) and a minimum width or height dimension of 18 inches (457 mm) and be operable from the inside to provide a full, clear opening without the use of special tools.