- 1). Install the final piece of drywall leading up to the corner just like the previous pieces of drywall were installed. Line it up horizontally across the wall. Screw it to the studs in the wall with a power drill. Spread out the drywall screws every 8 inches down the entire sheet.
- 2). Place the second sheet of drywall on the other side of the wall and screw it to the studs just like the first piece was installed. Set the bullnose corner bead on the corner between the two pieces of drywall. Push it firmly into place and verify that it fits properly in the opening.
- 3). Sand down the edges of the sheetrock with a drywall rasp. Grip the rasp in your dominant hand and slide it back and forth over each side of the sheetrock. Sand down each side equally until the bullnose corner bead can fit in between the two pieces of sheetrock.
- 4). Measure and cut the height of the corner bead with tinsnips, if necessary. Mark the cut line with a pencil and follow along the line with the tinsnips. Spray corner bead adhesive over the back side of the bullnose corner bead. Push down on the button and release the spray down the entire length of the piece.
- 5). Push the corner bead over the opening in the corner and run your hands up and down so it can adhere in place. Push down firmly on the corner bead and secure it to the wall. Repeat the process for any of the other rounded corners that need to be finished.
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