a ski or snowboard includes a metal layer having integral flanges projecting from its opposite sides to define a cavity for receiving a base layer . several additional layers of laminated wood and in some versions synthetic polymer or carbon are pressed and bonded together on the metal layer . a method of manufacturing includes a support plate which holds a base layer and edge members received in a slot in the perimeter of the base layer . additional layers of the ski or snowboard are successively laid on the base layer and pressed and bonded together .