Blanco 512743 Precision Small Bowl Undermount Sink, Vertical Orientation, Stainless Steel 18-Gauge, 304 Series Stainless Steel Required outside cabinet is 15", but please make certain there is adequate countertop width to accommodate the substantial sink width (20") Zero radius corners, near seamless appearance Drain is not included; features sound deadening insulation Limited lifetime warranty 18-Gauge stainless steel Bowl depth 8-Inch Outside dimensions 11 inches by 20 inches Undermount sink Drain width 3-1/2 inches