My garage is 24' x 28' and the outside walls are T111. The bottom two feet have dry rot and are pulling off of studs. I now have a new roof and gutters and plan in the future to finish in vinyl siding. In stead of replacing all the T111 can I saw off the bottom two feet and replace with plywood? Would it be O.K. of there's no blocks of wood between the studs where the seams meet or would the boards eventually warp? The walls inside of garage are covered with plywood.