The X Blackboard MDF Barn Door features a 1-1/2 inch thick door produced using solid MDF... medium density fiberboard. The MDF BarnCraft Collection is available with a white primed finish, to which you should apply your own paint color. MDF doors are available with the door design router-carved on the front side only. All doors in MDF series are solid and heavy. For safety, please install using two people. All barncraft door hardware may be used on these doors.