A chipboard is composed of small pieces of wood (referred to as chips) that are pressed together to form a wooden board comprised entirely of chips. Chipboard could be used as a core for doors which has some advantages and they are: - Insulate sound from entering the room - More stability and resistance to door - Improved outcome with burn rate - Tubular core, has a combination of light weight and stability - Faster assembly time than alternative door cores - Very suitable for doors with delicate surfaces Chipboard can come in different densities (33mm and 38mm) and different sizes. Different kinds of specially designed chipboards are manufactured by the German company Sauerland Spanplatte. It fabricates different types of chipboards cores for different purposes. The tubular core is one of their finest creations. It combines many targeted and preferred qualities in one board. It is made light weight, yet resistant, has a good burn rate and insulates sound. These are very significant characteristics for door cores. These cores are also very suitable for doors with a very smooth finish. Our unique boards are imported from the Sauerland factory in Germany.