are attic trusses more expensive?
Attic trusses cost about 2-1/2 times what a standard truss costs, raising the price on a standard-size garage about $1,600. But that's a bargain considering you'll have a full-size room ready to wire, insulate and finish. Attic trusses for a 24-ft. -wide garage with a steep roof pitch would provide a room about 16 ft.