Advantage Plus treated Radiata pine in 1" x 6" V-Rustic Shiplap (Pattern 793)

CAL FIRE’s Office of the State Fire Marshal identifies this exact product under Building Materials Listing 8160-2126:0101, category 8160. It appeared in the 2025 OSFM wildfire-area handbook, and the live listing observed on August 25, 2026, remained active with an expiration date of June 30, 2027. The product is tested under protocol SFM 12-7A-3.

The same listing names several other sizes and patterns, but they do not change the scope of Pattern 793. The listing also names a 1-inch by 6-inch tongue-and-groove beaded ceiling with one-half-inch gypsum backing, but it does not clearly establish whether Pattern 793 is a no-backing assembly. Follow the manufacturer’s installation requirements for the exact assembly. For Pattern 793, the listing supports wildfire-area use specifically in the eaves category.