Outline the harmed area that has a framing or carpenter's sq.. Utilize a pencil to draw a square or rectangle that matches round the gap.[six] Seal seams on new drywall with drywall tape and compound and Permit dry. Sand the world with medium-grit sandpaper and vacuum up the dust. http://reidzyvrn.blogofoto.com/13549089/need-to-repair-drywall-in-kitchen-secrets