A method for cable management in an electronics enclosure is disclosed. The method involves extruding at least one length of material that forms a cable guide having a plurality of partitions defined by one or more cable dividers and two end clip flanges, where the end clip flanges each have at least one snap guide and at least one locking clip channel. The method further involves sizing at least one cable guide assembly from the length of material, based on a predetermined length for the cable guide assembly, and preparing one or more ends of the at least one cable guide assembly.