A utility raceway for a commercial cargo body. The utility raceway includes an interior defined between a first side, a second side, a third side opposite the first side, and a fourth side opposite the second side. The utility raceway also includes a plurality of internal utility cavities separated by at least one vertically-oriented flange extending between the first and third sides, a first living hinge formed between the first side and the second side, and a second living hinge formed between the second side and the third side. The first side is pivotable relative to the second side about the first living hinge and the third side is pivotable relative to the second side about the second living hinge.