Decorative crown molding hides any imperfections where the wall meets the ceiling while at the same time giving the room character. Typical pointed outside corners turn at 90 degrees. A rounded, or bullnose, corner can also turn at 90 degrees. However, crown molding installed in the typical fashion leaves a noticeable gap between the wall and the molding. Determine the degrees in the corner's turn and divide this number by four to discover the angle of the cuts you need to make.
Instructions
1. Cut a piece of scrap 2-by-4 into two 2-foot boards. Place one board on each side of the bullnose corner so their ends intersect. Use a pencil to trace where the top board intersects the bottom board and lower them from the corner.
2. Lay the bottom board on a flat surface with the tracing face up. Hold a protractor flat against the board's bottom and determine the pencil mark's angle. The pencil mark's angle will be the same as the corner's angle. Divide this angle by four to determine the necessary angle of each cut. For example, 90 divided by four equals 22 1/2. In this example, you would set a miter saw to a 22 1/2 degree cut.
3. Place the first piece of molding on the miter saw table with the decorative side facing away from you. Cut a small piece off the end, just enough to angle that end to the appropriate angle. Flip the molding over so the decorative side faces you. Measure 3/4 inch down, on the molding's bottom edge, and make another cut. You now have a small, crown-molding triangle. Set the triangle aside.
4. Measure the distance from the last installed piece of crown molding to the bullnose corner. Transfer this measurement to a new piece of crown molding. Adjust the miter saw blade to point to either the right or the left, depending on which side of the corner you install this piece of molding. Set the cut to the and cut the crown molding at the mark.
5. Lift the crown molding up to the wall and secure it in place with a pneumatic nailer and finishing nails. Spread wood glue on the 's sides and push it onto the installed molding's end.
6. Measure from the little triangle down to determine the length of the next piece of crown molding. Adjust the miter saw blade to either the left or right at the appropriate angle and cut through the molding. Lift this piece up to the wall and push its cut end against the little triangle's glued end. Secure it in place with a pneumatic nailer and finishing nails.
Tags: crown molding, appropriate angle, little triangle, , piece crown molding,