Step 1: Cut and Position the Base Molding

Measure 8" down from the ceiling and snap a chalk line all the way around the room.

Cut the base molding to length and nail it at the underside of the chalk line.

Step 2: Cut and Attach Wedges

Cut enough 2" wedges to go all the way around the room, placing them every 24". Use a nail gun to attach the wedges to the base molding. Make sure they are even with the top of the base molding.

Step 3: Mount the Lights

Mount the rope lights along the top of the base molding using the plastic hangers sold with the lights. This is done with a screw gun and 1" screws.

Each segment of lights has a plug to add on successive lights to reach the desired length. Rope lights come with a cord and plug. To wire the lights to a switch, consult an electrician.

Step 4: Nail the Crown Molding

Test fit a length of crown molding against the wedges, then insert one of the inside or outside corner blocks. Once you're sure it fits properly, nail it in place with a nailer.

Continue around the room by butting another long run of molding to the previous one.

Use wood filler to fill the nail holes. Once the putty dries, sand then paint.