Abstract: A modular rack array for supporting in stacked vertical relation, successive rows of horizontally disposed barrels. An elongated base rack for supporting a base row of barrels is assembled from a plurality of modular base rack sections. Each modular base section is formed from members having hill and valley portions, and the valley portion of each section supports a barrel oriented with its bung facing upwardly. One or more stacking racks, each including a series of similar modular rack sections, is successively assembled, stacked, and loaded with barrels, the entire assemblage resting upon the underlying, established row of barrels. Modular end braces, connected to the end extremities of each rack, add further rigidity to the rack and barrel array.