Abstract: A collapsible cargo rack with storage and use configurations. Right and left rack subassemblies are secured to sidewalls of a truck bed. A lateral support member has ends selectively retained by the rack subassemblies, each with a support arm retained by a pivot mount at a longitudinal pivot axis to pivot from an upright position for supporting cargo to a retracted, visually and practically unobtrusive position. The pivot axes are disposed below the upper edges and inwardly of the sidewalls. The support arms can be selectively fixed in the upright position by set pins at an inward angle ?. Distal segments of the arms can be outwardly angled by the angle ? thereby to be substantially vertical and parallel. Sleeves fixed to the ends of the lateral support member matingly receive the distal segments of the support arms, which can have lengths greater than the heights of the sleeves.