To do a drywall repair for holes larger than 6″ cut a piece of drywall into a square a little bit bigger than the hole. Hold the square over the hole in the drywall and trace around the edges. Cut along the lines on the wall with a drywall knife. Before cutting, check the hole for electrical wires. Typically, they are attached to studs. Inside the hole, attach a furring strip, a small, thin piece of wood, to either side of the hole with screws. Sink the screws beneath the surface of the drywall. Set the drywall repair patch in place and screw it into the furring strips, sinking the screws beneath the surface of the drywall. Apply joint tape to the borders of the patch. Joint tape is made of mesh and strengthens the bond between the patch and the wall, reducing movement and helping to prevent future cracks. Cover the patch and tape with joint compound, feathering the edges. Allow the compound to dry according to the manufacturer’s instructions. Apply a second coat if needed. Sand smooth and it is ready to paint. You have completed a drywall repair for a hole larger than 6″.