Use scarf joints on long walls.
Join crown molding middle wall.
On occasion you may find that you need to join 2 pieces in the middle of a wall.
When it can t two lengths join end to end in a scarf joint 4.
Set your miter saw to 22 1 2 degrees and make scarf cuts with the molding upside down just as you did for other miter cuts.
Cutting the crown molding to the correct length and angle is the most difficult part of its installation.
Join sections of crown on long walls using scarf joints.
Known as splicing or a scarf joint this task is fairly simple with the right tools.