Chapter 11B — ACCESSIBILITY TO PUBLIC BUILDINGS, PUBLIC ACCOMMODATIONS,
Section 11B — 705 — DETECTABLE WARNINGS AND DETECTABLE DIRECTIONAL TEXTURE
2025 California Building Code (Title 24, Part 2) · 2025 edition · ingested 2026-07-07 · California
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11B-705.1 Detectable warnings 11B-705.1.1 General. Detectable warnings shall consist of a surface of truncated domes and shall comply with Section 11B- 705 . 11B-705.1.1.1 Dome size. Truncated domes in a detectable warning surface shall have a base diameter of 0.9 inch (22.9 mm) minimum and 0.92 inch (23.4 mm) maximum, a top diameter of 0.45 inch (11.4 mm) minimum and 0.47 inch (11.9 mm) maximum, and a height of 0.2 inch (5.1 mm). 11B-705.1.1.2 Dome spacing. Truncated domes in a detectable warning surface shall have a center-to-center spacing of 2.3 inches (58 mm) minimum and 2.4 inches (61…