How to Place Cornice Moulding in a Miter Box

Written by jay angel
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<p> defines a cornice as "a decorative moulding at the junction between a wall and ceiling of a room." The simple fact that this decorative woodwork has to be cut at an angle makes it difficult. Without a mitre box or some form of specialised angle-cutting tool, performing angled cuts on cornice, also known as crown, moulding would be next to impossible. Crown moulding must be positioned correctly in a mitre box if you expect it to look nice after you cut it.

Skill level:
Moderately Easy

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Things you need

  • Cornice moulding
  • Mitre box
  • Backsaw
  • Lumber crayon

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  1. 1

    Measure the piece of moulding, and make a line with your lumber crayon exactly where you would like it to be cut.

  2. 2

    Set a scrap piece of wood against the back fence of the mitre box. This will help you hold the moulding securely in the box.

  3. 3

    Position the moulding upside down and face up in the mitre box. The part of the moulding that will rest on the ceiling will sit on the bottom of the box, and the outside of it will sit up or be facing you. Rest the moulding against the scrap wood at the back of the mitre box.

  4. 4

    Align the positioned moulding with the line you drew with your lumber crayon, hold the moulding tightly against the back fence with one hand, and cut with a backsaw with the other hand.

Tips and warnings

  • A thick piece of moulding can take a while to cut, Do not rush the process.

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