KOHLER Undertone triple-basin sinks provide flexibility for food preparation and cleanup * Exterior dimensions: 44-11/16-Inch x 18-1/2-Inch * Interior dimensions: 42-7/16-Inch x 16-1/8-Inch * Basin depth: L 9-1/2-Inch , R 9-1/2-Inch , C 5-1/2-Inch * Triple-basin sink