My 15 year old garage is 24'x36' with a 9/12 pitched roof (gabled on short sides). It has a 9' door and a 16' door on the long side. There is no floor over the 16' door, but the header (2x12 plywood sandwich) has sagged about 1.5".
I know it's not an ideal repair, but I intend to lag bolt a...