The individual compartment dimensions are not specified for the Richelieu 55100. The manufacturer only provides the overall tray requirements: Width: 15-33/64" to 17-3/4" Depth: 18" to 21-1/2" Minimum height: 3-3/8" . It is a two-tier tray with multiple cutlery compartments, and the trays can be cut to fit the drawer.