Medium-density fibreboard (MDF) is an engineered wood product made by breaking down hardwood or softwood residuals into wood fibres, often in a defibrator, combining it with wax and a resin binder, and forming it into panels by applying high temperature and pressure.
MDF is generally denser than plywood. It is made up of separated fibres, but can be used as a building material similar in application to plywood. It is stronger and much denser than particle board.
MDF may be used to make display cabinets, wall-panels and storage units. MDF will not expand and contract due to heat and humidity the way solid wood can. Shaping MDF is easier than shaping solid wood, making it easier to do more elaborate designs. Veneer can easily be attached to MDF to give it the look of genuine wood.