A telecommunications cable management system includes a planar base element including a planar top surface and side edges. Side elements are mounted with a mating arrangement to the base element. The side elements may include one or more of the following; upstanding wall portions, side exits extending horizontally, and downspouts. The base elements and the upstanding wall portions may have a continuous cross-section, and can be cut to the desired length for the cable management system. The downspout and side exit elements may also include multiple components wherein a central section of each can be cut to the desired width.
