Ch. 6 Types of Construction — 2025 California Building Code
California Building Code (Title 24, Part 2) · 2025 edition · updated 2026-09-25 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Building Code (Title 24, Part 2) Chapter 6 · Effective January 1, 2026 · Official source: Building Standards Commission
User notes:
About this chapter: Chapter 6 establishes five types of construction in which each building must be categorized. This chapter looks at the materials used in the building (combustible or noncombustible) and the extent to which building elements such as the building frame, roof, wall and floor can resist fire. Depending on the type of construction and the specific building element, fire resistance of 1 to 3 hours is specified.
ICC code development note: Code change proposals to sections in this chapter will be considered by one of the code development committees meeting during the 2025 (Group B) Code Development Cycle.
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