What would it to take to fix a fist size hole in the wall?
First,cut the hole into a square,do so with a sheetrock(key hole) saw.Then,you cut a square piece of drywall lager than the hole,about 6 inches larger on all sides.You then cut the back ONLY of the sheetrock the size of the square hole that you cut in the wall,and remove the “rock”,but leave the paper on the finish side,remove as much texture as possible. Then,apply regular drywall compound(green top) to the wall and afiix the blowout that you made>with a spackle knife,press hard over the paper section of the patch,not the center,and screed out the compound until flat.Finish after drying with two more coats of compound,make them just thick enough to cover,sand lightly when dry. The next idea would be to place a piece of wood inside the new square hole,then run screws into it,through the existing drywall.This creates a backing to screw a new piece in.Compound that,apply tape,then finish with two more coats after drying,same sanding required. ALWAYS prime new patches or new sheetrock to
