How To Measure a Mitre
Finding the right measurement to cut DECORATIVE CORNICE
  Finding the right measurement to cut DECORATIVE CORNICE
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Steps to get the measurement to cut decorative cornice
- As shown in diagram A, place the cornice "upside down" against the wall and floor.
- Adjust the cornice so it sits square, as it would in place on the ceiling.
- Mark along the edge of the cornice on the floor.
- Measure from the wall to the mark. This is the measurement used to cut the miter
- As shown in diagram B, mark a line square across the cornice.
- Measure along the WALL MEMBER while the cornice is "upside down". From the line squared across the cornice and place a pencil mark.
- The cut is made from the mark made on the wall member to the point the squared line, meets the ceiling member.
- To make the cut the cornice must be held in place as in diagram A. The best method to do this is use a miter box. Mark a line on the miter box where the cornice needs to sit and put in a few nails, or nail something to the miter box to keep the cornice in place.
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