Rounded corners soften the transition between rooms and offer a stylish look to your home. Called "bullnose," these corners replace traditional angled corners with crisp edges. There are a few places where you can use bullnose technology and a variety of products to aid you in making uniform rounded corners. Sheetrock is a brand name of drywall, manufactured by USG Corp. You will make provisions for bullnose corners at the same time you install the Sheetrock.
Outside Corners
Bullnose corners are the most noticeable on walls that define room separations. The rounded corners extend from the ceiling to within two or three inches of the floor, where the bullnose corner transitions into a traditional square corner for baseboard-trimming purposes.
Windows
If you use bullnose on the corners of your walls, you can dress up your windows by installing it here as well. Bullnose corners replace the square wood trim above and on the sides of the window. You may still choose to have a windowsill at the bottom of the window. When choosing window dressings, consider treatments that fit inside the bullnose corners, allowing the rounded window edges to show.
Arches and Decorative Offsets
Framing arches out of wood is complicated and requires a skilled finish carpenter. This is one area where a bullnose option really shines. The builder frames the arches and covers them with drywall, before fitting flexible bullnose corner bead over the edges and applying joint compound to smooth the surface.
This flexible bead also makes it possible to design and finish rounded offsets, such as bulk headers above cabinets and other custom wall details.
Making it Happen
In addition to the flexible corner bead, straight bullnose corner bead takes the guesswork out of creating rounded outside corners and window trim. Bullnose corner bead is available in metal for nailing on, in plastic for nailing or gluing on a surface, and in paper, which requires glue and joint compound to hold in place.
There is one notable difference in drywall installation when using bullnose corners. The edges of the drywall must not overlap as they do when installing drywall for square corners. Instead, the contractor will cut the edge of the Sheetrock to fit one-half inch shy of the end of the wall. This allows proper fitting of the bullnose corner bead.
After the corner bead is in place, apply joint compound over the bead while taping out the walls. Use an inexpensive bullnose taping tool to assist in uniformly smoothing the compound over the rounded corner.
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