I recently had a scare with my plumbing where the plumbers had to cut a large hole behind my sink. I attached a picture of the hole below. It is around two feet tall by a foot and a half wide.
I have never replaced a piece of drywall so large, but from what I have seen online you are supposed to cut out a piece of drywall that matches the size, and put a wood brace behind so that you can nail the drywall into place; however, how am I supposed to do that in this case as the only thing that could be used to secure it on the bottom would be to drive the nail through the floor molding? Any help would be appreciated!