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Getting Started:- Cut a scrap piece about 1 foot long to use as a guide. Hold the scrap piece of molding in place at each corner and mark the position of its bottom edge (the edge that will sit on the wall) with a pencil. Stretch a chalk line between the marks at each corner and snap lines along the wall. This is the installation line.
- Next, locate studs and joists. Mark their locations with a pencil just below the installation line. In the Martini-Segar household, however, wood lathes are used to support the plaster, and this step isn't necessary.
Installation1. To determine the length of the first piece of molding, measure the length of the wall with a tape measure and transfer this measurement to the wood with a pencil. Cut a piece of crown molding to length. Place the crown molding face up on the miter saw. Then set the saw to a 34- 5/8" degree miter and a 31-3/8" degree bevel--the standard measurements for crown molding (figure A). 2. Align the bottom edge of the wood with the chalk line from Step 1. Working from the center to the corners, use nail gun (figure B) or hammer to drive nails through the molding, 1/2" from the bottom edge and 1/2" from the top edge. 3. If molding isn't long enough to span a wall, splice two pieces together with a scarf joint, (normally centered over a wall stud).
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