A product display shelving system for holding product containers in a stackable arrangement thereon comprising a base structure, a pair of frame members extending upwardly from adjacent one end portion of the base structure, a base shelf member adaptable to be supported on the base structure and a plurality of additional shelf members each adaptable to rest upon and to be supported by the product containers positioned on a shelf member located immediately therebelow, the base shelf member and the additional shelf member each including a product supporting floor portion having a surface contour defining a plurality of adjacent product support areas thereover, each of the product support areas being adaptable for holding and supporting at least one product container positioned respectively thereon, each of the plurality of additional shelf members being hingedly attached to the upwardly extending frame members at spaced vertical locations therealong such that each is pivotally movable between a substantially horizontal product holding position and a retracted out-of-the-way storage position angularly related thereto, each such additional shelf member including surface portions located on the lower surface thereof for engaging and resting upon the product containers positioned immediately therebelow when each is moved and located in its substantially horizontal product holding position.

A resilient hinge assembly particularly useful in display structures for merchandising goods comprises a band of plastics material incorporating a central flexible bridge interconnecting a pair of end elements. One of the end elements attaches to a back panel of a display structure and the other end element is slotted to receive a stabilizer shelf for the structure. A leaf spring extends across the flexible bridge and is connected to the end elements for imparting the required degree of restoration force to the assembly.

A corrugated paper display stacker having a plurality of vertically arranged springs and upwardly biased pivoted trays secured to a back panel. A double acting torsion spring having hooks on protruding fingers that are inserted into the fluting of the tray and a stablizing U-shape loop on the other side of the spring maintain each of the trays in a vertical position when not loaded with merchandise. The torsion spring is held to the back panel by securing means in the form of a dowel.