I live in a cheap house that has horizontal joists holding up a plasterboard hollow wall - hope this makes sense. Looks like someone opened the door too hard one day and halfway across the wall is a vertical crack. I have used wood glue, polyfilla and dulux flexible paint, but its still a nasty piece of work. i can't sand over the glue now!PS I live in the UK, so don't refer me to Walmart or use brand names as I can't just nip over there!
Hello UK. Well it sounds like you have a mess. What I would do is cut out the damaged areas between each stud making sure that you take out the plasterboard half way into the stud. Then replace the area with Sheetrock or plasterboard. The board should be cut to fit the hole and you should be able to screw to the existing studs. If you dont have enough board to screw to, then build a new box made of 2x4s and then put up your new board. Then its just tape and mud to finish.
May 11, 2017