Pallet divider

This invention relates generally to a pallet divider which is placed between layers of a product stacked on a pallet, and more particularly to a divider which is stackable with other similar dividers or with pallets with which they are used. A divider for use in a stacking system for shipping of products in multiple layers in association with a pallet. The dividers are stackable and nestable with one another and with the pallet, and include a retaining wall to prevent movement of products off of an upper supporting surface thereof. The divider may be molded of a high-density, polymeric material to form a strong, rigid and durable divider which may be reused. As the dividers are nestable within one another and a pallet with which they are used, reshipping of multiple dividers for reuse is simplified.