Refitting Cut Out Section

• If you have the round section of drywall it is easiest to just simply put the section of drywall back in its place. When you cut holes in drywall if you save the cutout it will fit back into position without the need to measure and cut another piece of drywall.
  
  

Squaring the Hole

• Making the hole square makes more sense if you do not have the round cutout piece of drywall. Draw a square around the hole, and use a straight edge, pencil and tape measure to ensure that your square is the same size all the way around. The pencil drawing will give you a path to follow with your drywall saw. Cut out the square and use the same measurements to cut a new section of drywall.
  
  

Anchor Blocks

• Once you have your section of drywall ready to install you will need to anchor it in place. Cut four sections of 1-inch by 2-inch pine or cedar boards to a minimum of 3-inches in length. Place a section in each corner of the cut out in the wall. The wood sections go on the backside of the drywall and stick out approximately 1 ½ inches to provide an anchor for your new section of drywall. Use a drill and a Phillips head drill bit to secure the blocks with 1 ½-inch drywall screws. The screws go through the face of the drywall into the wood blocks.
  
  

Setting New Piece of Drywall

• Set your new section of drywall into the hole and secure it in place with drywall screws. Each corner of the new section of drywall should be resting against a wood block. Finish your repair by taping and bedding the seams with drywall tape and drywall compound. Tape the seams and apply a thin smooth layer of drywall compound over the tape. Allow it to dry overnight and apply a second coat. Allow this coat to dry and sand it smooth with 100-grit drywall sandpaper.
  
  

Tips

• Use a sticky back mesh tape for the seams to avoid getting bubbles under the drywall tape. Apply the tape to the seams and then spread your drywall compound over it.