VIGO 23-inch Undermount Stainless Steel 16 Gauge Stainless Steel Single Kitchen Sink with Rounded Edge Premium 304 Series stainless steel construction, 16 gauge Exterior Dimension: 23-in. L x 20-in. W x 10.25-in. H, Interior Dimensions: 21-in. L x 18-in. W x 9.875-in. H Required interior cabinet space: 25-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 Elegant, functional drain grooves for quicker draining and drying Free embossed VIGO cutting board included, cUPC certified, Limited Lifetime Warranty