Compressed wooden pallets are pallets made from natural wood. It is the most widely used tray now. The pallet is a horizontal platform device used for consolidating, stacking, handling and transporting goods and products as a unit load. It is generally made of wood, metal, and fiberboard, which is convenient for loading and unloading, and handling unit materials and small quantities of materials. The types of pallets are mainly wood, plastic, metal and other materials. Wood is now the most widely used because it is cheap and strong.