• In this video, This Old House general contractor Tom Silva explains how to cut crown molding.

    Steps:

    1. To make a scarf joint in the middle of a long run, start by placing the crown molding upside down on miter saw table; hold the molding at the same angle as it will be installed.
    2. Set blade at 45 degrees and make cut in two lengths of molding to create a scarf joint.
    3. To form an outside corner joint, set the saw blade at 45 degrees to the left; cut the first length of molding.
    4. Rotate saw to 45 degrees to the right and cut the second mating molding piece.
    5. For an inside corner joint, square-cut the first piece of molding and butt it tight into corner.
    6. Miter-cut the second piece to 45 degrees.
    7. Highlight the leading edge of the molding with a pencil.
    8. Cut along leading edge with a coping saw.
    9. Smooth the cut edge with 100-grit sandpaper to create a tight joint.
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    • Difficulty: Moderate
      It takes a considerable amount of patience and practice to consistently cut perfect crown molding joints
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      Tools List

      • miter saw
        Power miter saw
      • coping saw
        Coping saw

      Shopping List

      1. Crown molding

      2. 100-grit sandpaper