Allowable loads have been increased for wind or earthquake loading with no further increase allowed. Reduce where other loads govern.
Allowable loads are based on parallel-to-grain loading and a minimum member thickness of 3 1/2", with bolts in single shear. Straps must be centered at the splice joint, and bolt edge distances must meet NDS minimum requirements.
Designer must determine allowable loads when combining bolts parallel and perpendicular to grain.