OK, I'm going to tackle this just by jacking it up and replacing the sill. This all started with attempting to install a passage door prior to installing a garage door opener. I had the garge rewired for lighting and garage door opener. The opener might clear rafters running side to side...
Apparently I didn't reply properly earlier as I don't see my post. It appears to sit on the concrete floor as though the floor was poured and garage built on top or garage was previously jacked up when a garage floor was poured. I'm thinking it was built in 1929.
It appears to sit directly on the garage floor. I'm thinking it must have been jacked up in the past and the garage floor poured under it with no consideration for the ground underneath. The ground has shifted and the garage floor cracked and lowered in the corner where the sill rot is more...
Do you know if that cross or "x" beaming is really necessary? From other posts I've read the beams that run side to side should be strengthened, not all 4 corners tied together.
The sill at the northwest corner of my garage has rotted in about a 3 ft. long area. I can see the edge of the concrete slab (garage floor) and the ground outside through the opening where the sill is gone. My carpenter wants to jack it up and replace the sill in that spot. Question is, will...