Projects
Drywalling a Ceiling
Project Overview
When installing drywall the ceiling goes in first, in part so that the drywall on the walls will support the edges, and in part to ensure a tight seam at the edges of the room. Apply the drywall in several rows, each made of the longest pieces you can handle. Half-inch drywall comes in lengths of 8, 10, 12, 14, and 16 feet. In the best of all possible worlds, you can use a sheet as long as the room, but unless you’re experienced and have lots of helpers the sheet may be too hard to handle. The professional drywallers shown here tripled up to handle a 12-foot sheet. Install the drywall so that the short edges of the sheet will meet in the center of a joist. Generally speaking you can cover utility boxes and vents when you install the sheet and then cut them out once the sheet is in place. Sometimes, however, you’ll need to make a cutout before you install the sheet.
9 Steps
- SET UP THE ROOM
- CUT THE SHEET
- MAKE ANY NECESSARY INTERIOR CUTOUTS
- APPLY ADHESIVE
- PUT THE PANEL IN PLACE
- START THE SECOND ROW
- FINSIH THE FIRST AND SECOND ROWS
- CUT PIECES FOR THE FINAL ROW
- INSTALL THE LAST ROW
Step 1
SET UP THE ROOM
Rent or buy platforms or scaffolding so that you can reach the ceiling easily. If you can’t cover the length of the room in a single sheet, the ends (but not the sides) of adjoining pieces have to meet over a joist. Measure to find the middle of the joist you’ll use. Measure for any cutouts in the edge of the sheet, and for other obstructions such as an air vent, which sticks out and would bend if you tried to cover it.
Step 2
CUT THE SHEET
Measure and cut the sheet to length, guiding a utility knife along a drywall T-square. Lay out any cuts you’ll have to make for obstructions. If there are openings along the edge, like the one in the corner of this sheet, cut along the lines with a drywall saw.
Step 3
MAKE ANY NECESSARY INTERIOR CUTOUTS
Most cutouts on the interior of the sheet are made after the drywall is in place. The air vent in this room, however, extends through the drywall and would bend if you try to cover it without making a cutout. Lay out the cut, punch the nose of a drywall saw through the sheet to start the cut, and then cut along the lines.
Step 4
APPLY ADHESIVE
Adhesive helps hold the panels in place. Put a tube of drywall adhesive in a caulk gun. Cut off the tip, puncture the seal with a screwdriver or nail, and spread a 3/8-inch bead of drywall adhesive along the ceiling joists.
Step 5
PUT THE PANEL IN PLACE
Work with some helpers to put the panel in place so that it’s tight against the studs along both corners. Cover electrical boxes that are mounted on the ceiling. You’ll cut them out later. Screw the panel to the joists wit h1 ¼-inch drywall screws.
Step 6
START THE SECOND ROW
Start the second row before you finish the first row. Start at the end of the room opposite from where you began, and put up a full sheet. This automatically offsets the short seams from row to row, creating a stronger surface. It also keeps an out-of-square corner from creating a zigzag row that makes subsequent rows hard to hang.
Step 7
FINSIH THE FIRST AND SECOND ROWS
Measure and cut pieces to fit in the openings at the end of the first and second rows. Apply adhesive, and screw the panels in place. Continue installing full-width rows, alternation between ends of the room as you start each row.
Step 8
CUT PIECES FOR THE FINAL ROW
The fourth row is the final row in this room, and the pieces are about 22 inches wide. To cut the pieces to width, you can measure and draw a line, or you can guide the knife along a tape measure as shown.
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