A tray comprises a foldable sheet including: a bottom having a first sector with a folding line that defines a first joining zone, and a second sector joined to the first sector in the first joining zone; end walls each having an interior surface; support surfaces each extending from an end wall, where the support surfaces are oriented to support the weight of another stacked tray; first flaps each extending from a support surface, where each of the first flaps is folded towards an interior of the tray and having a surface facing and separated from the interior surface of an end wall; side walls; and a second flap extending from a side wall. The second flap is placeable a first position on a side wall for reinforcement and in a second position substantially perpendicular to the side walls to serve as a lid.

A box can include a body portion at least partially defining a cavity, the body portion defining a top body end and a bottom body end, the body portion including a plurality of panels, the top body end defining an opening to the cavity; a telescoping panel including an upper telescoping subpanel and a lower telescoping subpanel, the lower telescoping subpanel coupled to the body portion by a top hinge, the upper telescoping subpanel coupled to the lower telescoping subpanel by a telescoping hinge, the telescoping panel defining a locking tab disposed opposite from the top hinge, the lower telescoping subpanel extending into the cavity and positioned in facing engagement with a first panel of the plurality of panels, the upper telescoping subpanel extending across the cavity from the first panel to a second panel of the plurality of panels, the second panel positioned opposite from the first panel.