How to Calculate the Angle for Crown Molding

Crown is the name of the decorative molding, typically made of wood, that runs along the top of your walls. Crown corners must be specially cut in order to match up. Most crown molding today is cut on what is called a miter. This angled joint creates the illusion that crown wraps around corners in a single piece. To create a mitered corner, you have to know the angle of the corner. You can use an angle finder to do this.

Angle finder
Tape measure
Crown molding
Miter saw

Instructions

- 1
  Position the angle finder against the corner of the wall where it meets the ceiling. Align one arm of the finder with one wall, the hinged joint in the center and the opposite arm of the finder aligned with the opposite wall of the corner. Press the hinge firmly against the corner. Remove the finder, careful not to move the arms.
- 2
  Locate the angle dial on top of the hinge in the center. Find the indicator arrow and read the number it is aligned with and write it down. Divide this number by two to find the angle for each piece of crown molding that will combine to create this corner.
- 3
  Measure the wall and mark that length on the bottom edge of your crown. Be sure to always mark the bottom edge because it will always be the same as the length of the wall, no matter how tall the crown. Position the turntable of your miter saw to the divided angle. Position the crown on the saw with the top edge on the table and the bottom edge against the fence as they will be against the ceiling and wall.
- 4
  Align the blade with the mark on your crown. Align the blade on the right of the mark, for the right hand piece and vice versa. Angle the cut into the crown to make the top edge shorter for inside corners and the opposite for outside corners.

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Woodworking