Ash Veneered Mdf (Paint Grade) 2440 X 1220 X 18mm Veneered MDF (medium density fibreboard) is where two veneers of timber are bonded to a sheet of standard MDF. The result is a board that has all the beauty and character of natural timber with the stability of MDF. Veneered MDF is an ideal alternative to solid woods and it is used for a number of purposes including making office furniture and kitchen cabinets.