Multiple Rip Saw has blades of differing separations, to form a plurality of separate wood components. The transverse movement of the fence is automatically adjusted by a computer control, which includes the stored value of the boundaries of the maximum clear area of the board and so that the board is ripped into the number and size of wood components which achieves a maximum yield from each board. Also, the saw feeding table includes a fixed support frame and guide means for supporting the transverse movement of the fence while maintaining a high degree of accuracy in its alignment with respect to the fixed support frame.