The present invention relates to a flexible sheet of wood strips for use in the fabrication of engineered floor boards or wood sheets and including the machine and method of manufacture of the flexible sheet of wood strips. The wood strips provide a wood floor which has much more stability than a solid wood plank which is much more affected by the temperature in a room and the moisture under the floor board. Also solid wood planks are much more expensive than engineered wood planks where only a very thin layer of quality wood material is utilized. The transverse wood strips are constructed of inferior wood material. Two or more treads of flexible material may be secured transversely to the wood strips to provide additional retention of the wood strips in the flexible sheet.