Taping drywall is time consuming and tedious enough without adding extra joints, especially those hard-to-tape butt joints (top). So plan your job to use the longest and largest sheets possible. And don't scrimp on materials. Drywall is cheap. If the walls you're planning to drywall are between 8 ft. 1 in. and 9 ft. 1 in. tall, consider ordering special 54-in.-wide sheets of drywall to avoid an extra horizontal joint. You'll find 54-in.-wide drywall at drywall suppliers, or you can special-o...