Paneled Hollow Core MDF Interior Door SlabCALHOME painted pre finished doors are made of high quality MDF, a composite material milled in a one piece frame to withstand changes in heat and humidity better than solid wood. These interior doors are the perfect choice for the high end design of bedroom, closet or bathroom entry. Each door is carefully crafted to ensure quality over time. The design provides a stunning focal point for any space while also providing high functionality. Constructed