Measure for the crown molding. Measure the distances between each corner and write them down.

Cut the crown molding for each section of the kitchen cabinets. Lay the crown flat on the miter saw with the top of the crown touching the fence. Set the miter angle to 31.62 degrees - this angle is usually marked on the miter table. Set the bevel to 33.86 degrees, and again this is usually marked on the bevel scale. If you need more information about the cutting process, click the link in the Resources section for a detailed article.

Put the crown molding on the cabinets by placing the bottom of it so that it just covers the joint between the cabinet top and the backer board. This will allow the doors to function properly without hitting the crown molding. Use a brad nailer to nail the crown to the backer board.

Apply glue to any corner joints before installing. Fasten the tops of the inside corners together by nailing from the backside of the crown molding. Fasten the tops of the outside corners together by nailing from the face of the crown molding.

Fill nail holes with putty and caulk the seems, if the kitchen cabinets are painted. Otherwise, just fill the nail holes with wood filler that is designed to match the stain color of the cabinets.