An expandable product pusher display for displaying products while urging the products to the front of the display as they are removed by consumers. Left and right end caps support plural tiers of product pusher assemblies, each including left and right product platforms with pushers having springs arranged to urge the products forwardly. Each tier includes a scissor mechanism expandably disposed between the left and right product platforms, and configured to adjust the distance therebetween while maintaining parallel alignment, so as to accommodate products of different width through adjustment of the scissor mechanisms.