Display assembly with adjustable shelves

A modular display assembly for displaying merchandise includes a pair of opposite side members and a plurality of shelves adjustably mounted to the side members. The side members have forward and rearward facing edges, which include a plurality of protrusions spaced therealong. The shelf includes a mounting assembly, which includes a handle and first and second movable arms for mounting the shelf to the side members. The arms are configured to engage at least one of the protrusions to limit vertical movement along the side members when the arms are engaged with the edges of the side members. The shelf is positionable between the side members at a desired location and the handle is movable to move the arms into engagement with the forward and rearward facing edges to substantially clamp the side member between the arms and thus to fixedly secure the shelf to and between the side members.