VIGO 31 inch Undermount 70/30 Double Bowl 18 Gauge Stainless Steel Kitchen Sink Premium 304 Series stainless steel construction, 18 gauge Exterior Dimension: 31.5-in. L x 20.5-in. W x 9.25-in. H, Interior Dimensions: Larger Basin 17.75-in. L x 18.5-in. W x 9-in. H, Smaller Basin 10.5-in. L x 16-in. W x 7-in. H Required interior cabinet space: 34-in., Standard 3.5-in. rear drain opening Fully undercoated to prevent condensation and padded with unique multi-layer, sound-eliminating technology Commercial-grade premium satin finish, guaranteed to never rust Cutout template provided for .125-in. reveal or flush installation, Mounting hardware included Free embossed VIGO cutting board included, cUPC certified, Limited Lifetime Warranty