The M56R offset double bowl undermount sink is constructed from 18 gauge 304 grade stainless steel. 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 M56R are 29 3/8" x 20 3/4" x 9" and a 30" 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.