This single bowl undermount Pro Series Apron provides 90 walls for additional space but with small radius corners for easier cleaning. A fresh modern industrial look in a farmhouse application. The bottom of the sink has channel grooves to divert water for proper drainage. This is traditional stainless steel, not black.Exterior Dimensions: 30.125" x 21.625" corner,30.125 x 22.25" centerInterior Dimensions: 28" x 18"Product Features: -This sink is crafted from 304 stainless steel in a lustrous satin finish.-Nantucket Sinks are sprayed with a special insulation to reduce condensation.-Rubber padding is applied for noise reduction.-Limited Lifetime Warranty.-16 Gauge-Mount Type: Undermount-Sink Type: Apron-Bowl Type: Single Bowl-Number Of Bowls: 1-Sink Shape: Rectangle-Interior Damp-Sinks Only-Drain Opening: 3.5-Sinks Only-Drain Included'': Yes-Sinks Only-Drain Required: 3.5" Standard