MDF is an abbreviation for Medium Density Fibreboard. It is an engineered wood product that is cost-effective and fairly durable. It acts as a good substitute for wood. MDF is made from sawdust and other wood residuals that have been further broken down into their constituent fibres. These are bonded together into a board using bonding materials such as wax and binders. MDF boards are commonly available in thicknesses ranging from 4 to 25 mm and can be plain or pre-laminated to protect the surface. einsteineruploaded with.