Base board for model railroad. The board has a special construction that guarantees rigidity and very low weight. The reinforcing bars have openings at the top that can be used for cable installation. Holes in the bottom plate provide access to all locations. If necessary, they can be covered with a boards and used as storage space. The Base boards can be folded to the required size. Original Base Boards are attached directly to the Original Base Frame from planed wood battens. Delivered unfolded. Assembly is simple. Everything fits together into locks. Use wood glue for assembly.