A paperboard container folded from a single unitary blank of paperboard has a
bottom
wall, opposite side walls, and opposite end walls. Stacking tabs project from an
upper edge of the side walls for receipt in corresponding slots in an edge of the
bottom wall of an adjacent stacked container, and ventilation openings are formed
in the side walls for circulation of air. The side walls are formed by inner and
outer roll-over panels, and are slightly inwardly inclined to provide space for
circulation of air between the containers when two of them are abutted together
in side-by-side relationship. First extension flaps on the ends of the inner roll-over
panels lie against and are secured to the inner surface of the end walls, and second
extension flaps on the ends of the end walls extend between and are captured by
the inner and outer roll-over panels. In a preferred embodiment, the first extension
flaps and the roll-over panels are held in place by interengaged detent tabs and
slots, while in another embodiment the first and second extension flaps are adhesively
secured to adjacent panels.