How to Build a Columned Room Divider

To trim the top of the capital, measure one side, use a miter saw to cut a piece of solid crown molding at 45 degrees on each end, and install it with adhesive and brad nails. Continue measuring, cutting, and installing each side as you go. To trim the cabinet top, measure its long edges and miter-cut pieces of crown to fit—90 degrees at the wall and 45 degrees at the end. Glue and nail them in place. Measure and miter-cut the end piece to fit between the two mitered ends, then install it with adhesive and brad nails.