Davis, CA Building Safety: Door Locking Hardware (2026)

14, apply to new construction, additions, and alterations, and to any nonresidential building converted from single-tenant to multi-tenant use. The chief building official is the enforcing authority. Doors leading from a garage into a residence must be solid-core construction at least one and three-quarters inches thick, or a twenty-minute fire-rated door, and fitted with a single-cylinder deadbolt with at least a one-inch projection and three-quarter-inch embedment into the strike, a cylinder guard, a minimum of five pin tumblers, one-and-one-quarter-inch connecting screws, and a strike plate secured with three-inch screws.

All exterior-swinging doors of habitable areas must meet the same solid-core or fire-rated standard. 050(a)(2). The inactive leaf of double doors needs flushbolts embedded at least five-eighths of an inch into the frame, and any street-facing exterior door needs a one-hundred-eighty-degree door viewer unless it already has a clear vision panel. In multifamily buildings, exterior doors and doors from garages or into stairwells must have self-locking deadlatch devices that allow egress without a key but require one to enter. 120 lets an existing deadbolt with a half-inch throw remain as a legal nonconforming device at the point of resale, but once replaced it must meet current standards. No certificate of occupancy issues until a building complies, and alternate hardware needs advance approval from the building official.