7 Drywall Installation Mistakes You’ve Probably Made Before
This article walks you through the 'Do's and Don'ts' of drywall installation. It will help you avoid seven common mistakes people make when tackling their drywall projects. Enjoy the foibles of our enthusiastic but sadly misguided drywall installer as he shows you the right way and the wrong way to get the job done.
Hanging Drywall Vertically: Proper Edge Support
Mark Framing Locations
If you forget to mark the location of framing members before you cover them with drywall, you'll have a hard time placing the screws accurately (left). For foolproof screw placement, make these marks and use them as a guide to draw a light pencil line across the sheet (right). Then you'll be able to place screws quickly and accurately. And you won't have to waste time removing screws that miss the framing.
Mark the location of ceiling joists on the top plate of the wall framing. Then mark the center of each stud on the floor. Make note of unusual framing so you'll know where to place screws after it's covered with drywall. After the ceiling drywall is hung, mark the stud locations on the ceiling with a pencil before you start to hang drywall on the walls.
Hanging Drywall Vertically: Avoid Tapered Edges on Outside Corners
Check the Fit Before Fastening
Even with careful measuring, you'll often run into an outlet hole that doesn't quite fit. The common mistake is to screw the drywall to the framing before trimming the opening. Then the drywall will break around the electrical box (left), requiring extra time to patch. The key to solve this problem is to check the fit before you press the drywall tight to the wall.
After carefully measuring and cutting out the openings in your sheet of drywall, hold the drywall in place. If the fit is close, fasten the sheet with a few screws along the top edge or well away from the outlet openings. Trim excess drywall away along tight box edges with a utility knife (top right) until the drywall slides easily over the outlet boxes (bottom right). Then finish fastening the drywall.
Hanging Drywall Vertically: Leave a 1/8-in. Gap
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-order it from most home centers and lumberyards. You'll also speed up your job by using 12-ft.-long sheets of drywall rather than standard 8-footers (bottom). However, hauling 12-ft. sheets is difficult and getting them into the house can be challenging. For large jobs, have the drywall delivered. Many drywall suppliers will even stack the drywall in the house for an extra fee.
Avoid Future Cracks
Avoid lining up a sheet of drywall with the edge of a door or window opening (left). Your home tends to shift and settle slightly, and that movement shows up at the corners of windows and doors. A joint at this location, even if it's well taped, is weaker than solid drywall. Chances are it'll crack in the future.
It's better to notch drywall around openings rather than to make a joint. For interior walls, simply continue over the opening with a full sheet and cut out the opening after you fasten the sheet (right). Windows on exterior walls are a little trickier. Measure and notch the sheet before hanging it. Get help when hanging notched sheets because the skinny section above the opening is often fragile. It's OK to join sheets over an opening (and often easier if you're working alone) as long as the joint isn't in line with either side.
Watch this video on how to cut drywall before you begin your project.