Interior molding comes in many different styles. Baseboard lies flat against the wall and must be trimmed to allow two pieces to come together at corners in the wall. Casing is used to provide a trim around windows or doorways. Crown molding adds a decorative flourish to a room, running along both the walls and the ceiling around the perimeter of a room. With each style of molding, a specific trimming style is required.
Instructions
1. Adjust the circular saw to make a 45 degree angle cut.
2. Lay baseboard flat along the circular saw's cutting table, then cut through the board at the desired length to match the section of wall it will be resting on. The bottom edge of the board that is lying on the table must be as long as the wall section.
3. Lay casing against the circular saw's cutting fence, then cut through the casing at the desired length to match the section of door or window being framed. The casing is cut at a different orientation than the baseboard, even though both are flat, as the way the pieces are joined together is different.
4. Turn the crown molding over so that the edge that will fasten on the ceiling is on the table and the edge that will rest on the wall is against the fence, then cut through the casing at the desired length to match the length of wall it will be secured against.
5. Set the circular saw to cut 45 degrees in the opposite direction to cut the corresponding piece which will join with the first section cut at a corner.
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