Stackable shipping and display box

An elongate, rectangular box ( 12, 14, 40, 60, 70, 90, 100 ) and method for packaging containers (C), wherein the box can be cross-stacked for stable stacking of the boxes, and optimizes utilization of pallet space. Containers (C) are placed in the box in nested, offset relationship in a parallelogram shaped arrangement, and in one embodiment interior corner panels ( 20, 21 ) extend angularly across two diagonally opposite corners of the box, defining an interior box shape closely conforming to the parallelogram-shaped arrangement of the containers. The corner panels may be cut from the side walls ( 18, 19 ) and folded inwardly and secured at a free edge ( 28 ) to an adjacent end wall ( 16, 17 ), defining openings ( 22, 23 ) in the side wall through which the containers are visible. Side wall segments ( 24, 25, 26 ) at the bottom and sides of the opening, in cooperation with the corner panels, retain the containers in place in the box. The box is especially suited for packaging four one-gallon containers.