SEC. 91.2301. GENERAL.

(Amended by Ord. No. 185,587, Eff. 7/16/18.)

Section 2301 of the CBC is adopted by reference, except Section 2301.1 of the CBC is not adopted; and, in lieu, LAMC Subsection 91.2301.1 is added.

91.2301.1. Scope. The provisions of this division shall govern the materials, design, construction and quality of wood members and their fasteners.

Hillside buildings (buildings constructed upon slopes steeper than one unit vertical in three units horizontal [33.3% slope]) shall comply with LAMC Subsection 91.1613.9 (seismic design provisions for hillside buildings) and this division.

SEC. 91.2304. GENERAL CONSTRUCTION REQUIREMENTS.

(Amended by Ord. No. 188,739, Eff. 9/23/25.)

Section 2304 of the CBC is adopted by reference, except Section 2304.10.2 and 2304.12.2.8 of the CBC are not adopted; and, in lieu, LAMC Subsections 91.2304.10.2 and 91.2304.12.2.8 are added.

91.2304.10.2. Fastener Requirements. Connections for wood members shall be designed in accordance with the appropriate methodology in CBC Section 2302.1. The number and size of fasteners connecting wood members shall not be less than that set forth in Table 2304.10.2. Staple fasteners in Table 2304.10.2 shall not be used to resist or transfer seismic forces in structure assigned to Seismic Design Category D, E, or F.

EXCEPTION: Staples may be used to resist or transfer seismic forces when the allowable shear values are substantiated by cyclic testing and approved by the Superintendent of Building.

91.2304.12.2.8. Wood Used In Retaining Walls and Cribs. Wood installed in retaining or crib walls shall be preservative treated in accordance with AWPA U1 (Commodity Specifications A or F) for soil and fresh water use. Wood shall not be used in retaining walls or cribs for structures assigned to Seismic Design Category D, E or F.