Sink Dimensions: 14-1/2" X 12-1/2" X 6-1/2" Min. Cabinet Size: 18" UNDERMOUNT INSTALLATION: Sink is installed beneath the countertop creating a seamless appearance between the sink and the countertop. 18-GAUGE STAINLESS STEEL: Highest quality 18-gauge thickness and Type 304 stainless steel for lasting durability, performance and lustrous beauty. QUIET: Sound-deadening pad(s) minimizes sound and vibration for a quieter time at the sink. CENTER DRAIN: Drain is conveniently placed in the center of the sink. MADE IN THE USA: This Elkay product is proudly made in the USA. DRAIN OPENING: Sink drain opening measures 3-1/2".