I live in a raised ranch. The lower half of the house is divided into a 2 car garage and a living area. Also the lower half of the house has 8 ft. ceiling (about 4 ft. concrete walls and 4 ft. wood walls). The wood framing (2x6) on each side of the garage doors are warped and separating from the concrete portion of the garage walls. When standing in the drive way, a noticable gap exist between the concrete portion of the garage opening and the (2x6) wood framing. I want to replace the (2x6) wood framing on each side of the garage opening.
What is the best way to secure (2x6) wood framing to the concrete portion of the garage opening? Should I use pressure treated wood?