In carpentry, bullnose refers to an irregular corner, either rounded or angular. Trim a bullnose corner with a pre-made bullnose corner board that fits on the corner on top of the outside base moldings, or cut your own to create a flat center piece, like a bull nose. Pre-made bullnose corners fit over top of rounded corner bead, commonly used to create round corners. The pre-made corner board stands out from the rest of the molding. Create a flatter bullnose by cutting your own molding pieces to fit around the curve.
Things You'll Need
- Carpenter's pencil
- Measuring tape
- Base molding
- Safety glasses
- Miter saw
- Finish nails
- Small carpenter's level
- Caulk and caulking gun
Work from left to right to install baseboard. At the bullnose corner, press a piece of base molding tight against the last piece of installed base molding. Using a carpenter's pencil, mark the base molding at the outer edge of the rounded corner to get the length of board needed.
Put on your protective glasses. Set your miter saw to a 22.5-degree angle and place the base molding top side up against the saw guard. Test the precision of placement by lowering the saw blade onto the mark made in the previous step. Make any necessary adjustments.
Turn on the saw and lower the blade smoothly into the base molding and cut. This is your left-side molding piece. Using finishing nails, install this piece of molding onto the wall.
Cut a right-side piece of molding. Turn a second piece of base molding top side down to create an angle opposite from the first one. Fit this piece of base molding against the wall on the other side of the rounded corner. Use a level to make certain both the left and right baseboards extend precisely to the edge of the corner.
Install the right-side base molding to the wall with finishing nails. If possible, place nails in grooves or indentions.
Measure the distance between the outer edges of the right- and left-side moldings.
Press a piece of base molding against the saw guard, top side up, and cut a 22.5-degree angle. Measure from the outside edge of the angle to the length of the measurement taken in the previous step.
Turn molding top side down and cut a 22.5-degree angle, with the outermost edge at the mark made in the previous step.
Use adhesive or finishing nails to install the bullnose to the corner. The bullnose molding should fit snugly against the two pieces of side molding and should lightly touch the curve or angle of the bullnose wall.
Caulk to fill cracks in the bullnose corner. Counter sink finishing nails and putty. Lightly sand dried putty to create a smooth, even surface.
Tips & Warnings
- Practice your bullnose corner on scrap pieces of base molding before cutting your good molding.
- Photo Credit Bull image by Snow Queen from Fotolia.com
How to Install Interior Baseboards With Bullnose Corners
Wood is one of the most affordable and common types of trim used in homes around the country. It works for both...
How to Cut and Install Baseboards at Rounded Corners
How to Cut and Install Baseboards at Rounded Corners. Baseboards really make a room when they're done right. You may find a...
How to Install Bullnose Corners on Drywall
A bullnose corner bead can be a interesting choice for covering an outside angle. Transition caps and other types of fixtures will...
How to Install Trim on Rounded Corners
Installing trim around rounded corners is much less complicated than it seems, thanks to factory-made corner blocks. Instead of manipulating flat pieces...
How to Cut a Crown Molding for a Bullnose Corner
Installing crown molding is challenging enough for most people, but add a rounded corner to that installation and many would simply scratch...
How to Install Trim Molding on Curved Corners
You can apply trim molding to virtually any shape with the proper tools and techniques. Curved corners require a different approach as...
How to Install Baseboard Trim for Bullnose Drywall
When the corner of a drywalled room sticks out, you can apply regular 90-degree corner bead or rounded (bullnose) corner bead to...
How to Cut Base Molding Around a Bullnose
Rounded drywall outside corners are often used in today's homes. The bullnose is a tight curve on an outside corner or edge...
How to Install a Bullnose Stair
Bullnose stair treads have a rounded-over edge that protrudes from the staircase. This allows a carpet installer to wrap the carpet over...
How to Cut the Baseboard For a Bullnose Corner
Bullnose corners are an attractive way to create graceful curves in a room. A bullnose is a rounded edge. Bullnose corners can...
Bullnose Trim Vs. Quarter Round Trim
Molding is a term used by builders and architects to describe a strip of material covering the transition from one surface to...