SUPREME UBB

Supreme Ultimate Bunk Boards have all the benefits of our original Ultimate Bunk Boards, and are intended for use with larger sized boats and trailers. Supreme boards include heavy-duty screw mounted aluminum rails that give extra support for larger, heavier boats. These boards are ideal if the span distance between mounting points for 2x4 sized boards exceeds 48 inches, or 60 inches for 2x6 sized boards. Extremely easy to install!