Watch this video learn how to drywall an archway in five quick and easy steps. Measure and cut drywall to fit your arched opening. Score the back of your drywall to help it bend to your archway. Place drywall into opening. Tack or nail to hold the drywall in place. Screw drywall into arch. Mark and cut the drywall for the face of the archway. Place drywall over archway and use as a template to cut the drywall. Nail/Screw drywall to the face of the archway. It is now ready for corner bead, tape and mud.