Base board for model railroad ASSEMBLED. 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. The Base Boards and Base Boards with Hidden Station are attached directly to the Original I-Track Base Frame from planed wooden slats.