I need to replace the sill of an exterior wall (load bearing wall that faces the outside the home). I ripped the sheet rock off and noticed some very old termite which was apparently treated years ago and there's no sign of new termites/damage.
There's a couple caveats though. The section that needs replacing is about 3ft of damage and its a corner. The section around the corner is only about 12 inches long before I hit the garage door (see pics).
What's the best procedure for replacing this? Can I just nail a support across the studs or should I support it vertically from the ground when I cut out the sill?
Also, this came right after I just built a full loft and put new anchors in....