Are Wood Panel doors solid wood? If not, how are they constructed and from what materials?
Wood Panel doors have a solid construction. However, they are engineered from various materials for best performance. For example, the panels are typically made from MDF (medium density fiberboard) with wood veneer laminated to the outside surface. Stiles (vertical portions) and rails (horizontal) typically feature wood veneers laminated to edge-glued wood substrates.