System and method for construction wall panels

A multilayer panel comprising:

• a plurality of layers, wherein each layer is comprised of a plurality of boards, and wherein the boards are coupled to each other with interlocking fingers or tongues and grooves;
• a core segment having an inside planar surface and an outside planar surface with each surface of the core segment having a plurality of mortise grooves cut thereinto, wherein the core segment is comprised of a plurality of the layers, a plurality of continuous holes drilled through the inside surface, the outside surface, and the plurality of the layers, and a peg inserted into each hole;
• an inside facing layer having an inner surface and an outer surface and a plurality of mortise grooves cut into the inner surface of the inside facing layer spaced to correspond to the mortise grooves cut into the inside surface of the core segment;
• an outside facing layer having an inner surface and an outer surface and a plurality of mortise grooves cut into the inner surface of the outside facing layer spaced to correspond to the mortise grooves cut into the outside surface of the core segment;
• a plurality of inside keys configured to be inserted into the mortise grooves of the inside surface of the core segment and the mortise grooves of the inside facing layer whereby to couple the inside facing layer to the inside surface of the core segment;
• and
• a plurality of outside keys configured to be inserted into the mortise grooves of the outside surface of the core segment and the mortise grooves of the outside facing layer whereby to couple the outside facing layer to the outside surface of the core segment.