The Pr905 Offset Double Bowl Undermount Sink Is Constructed From 304 Grade Stainless Steel And Is Available In 18 Gauge Thickness. The Surface Has A Brushed Satin Finish To Help Mask Small Scratches That Occur Over Time And Keep Your Sink Looking Beautiful For Years. The Overall Dimensions Of The Pr905 Are 35' X 21' X 9 1/4' And A 36' Minimum Cabinet Size Is Required. This Sink Contains A 3 1/2' Offset Drain, Is Fully Insulated And Comes With Sound Dampening Pads. As Always, Our Stainless Steel Sinks Are Covered Under A Limited Lifetime Warranty For As Long As You Own The Sink.