Elegant Series Composite MDF 2 Panel Camber Top Interior Barn Door SlabCALHOME molded panel doors are pre finished painted and made of high quality MDF, a composite material milled in a 1 piece frame to withstand changes in heat and humidity better than solid wood. Each door is carefully crafted in the USA to ensure quality over the years. The sliding door track hardware and interior door combination integrate style and functionality. The sliding track design transforms your doorway while saving space. For best results