Got a hole in your drywall because of a doorknob? This common drywall repair is fairly easy to do, and is a great starter project for drywall newbies. The first thing you'll need is a common adhesive patch made just for project like this, with a metal/fiberglass mesh. Place it over the hole, then simply coat with drywall compound. You'll need two or three coats. Let the compound dry, and sand if needed. Then, your next project should be installing a door stop to prevent your door handle from damaging the repair you just made!