The Signature Pearl cabinets consist of a ½” grade A plywood box with a solid birch 3/4” thick face frame. The door consists of a full overlay door 3/4” solid birch frame with an MDF center and 6-way adjustable soft close hinges. The drawers are solid wood dovetail construction with a full extension soft close undermount slide. The inside of the box matches the door color. This line comes with a 5 year warranty to be free of manufacturers defects from the date of purchase.