Knape & Vogt 20 in. H x 14 in. W x 12 in. D Plastic 32 Qt. Replacement Pull Out Trash Can in White-QT32PB-W -$21 The Home Depot "The shape is somewhat triangular in the rear and rounded on the front. The shape allows for three cans to be set in a circular pattern so that they fit in a lazy susan in a corner cabinet. For ours we used 2 plus a composting pot. They are set on the bottom shelf and pass through a hole cut in the top shelf for stability. Love the set up!"