Abstract: A multi-layer wood panel comprises a core segment, made up of a plurality of layers, and two external finishing layers. Each layer is comprised of several boards, joined at the edges with interlocking fingers or tongues and grooves. The layers of the core segment are joined using wood pegs at specified intervals, with the pegs penetrating all the board layers of the core segment at an angle other than perpendicular to the layers. The core segment and the external finishing layers of the panel are joined using key and groove mortise connections, where the key shape corresponds to the shape of the mortise grooves made in the outer surfaces of the boards of the core segment and in the inner surfaces of the outer finishing layer, which are oriented perpendicular or parallel to the direction of the board fibers.

Abstract: A multi-layer wood panel comprises a core segment, made up of a plurality of layers, and two external finishing layers. Each layer is comprised of several boards, joined at the edges with interlocking fingers or tongues and grooves. The layers of the core segment are joined using wood pegs at specified intervals, with the pegs penetrating all the board layers of the core segment at an angle other than perpendicular to the layers. The core segment and the external finishing layers of the panel are joined using key and groove mortise connections, where the key shape corresponds to the shape of the mortise grooves made in the outer surfaces of the boards of the core segment and in the inner surfaces of the outer finishing layer, which are oriented perpendicular or parallel to the direction of the board fibers.