The 16-Gauge, 304 grade (18/10) stainless steel commercial-grade material resists bowing, warping or denting, as well as corrosion and rust, even with high-volume use. Sink is expertly finished with a scratch-resistant, satin grain surface, which helps to maintain a beautiful appearance and lasting appeal. To improve the flow of water and food debris to the rear-set drain, the sink features subtle integral channels which slope the bottom of the sink toward the drain. A bottom grid is included which further improves drainage and provides extra protection from heavy use. Builtwith best of class soundproofing technology to minimize noise. The drain opening is industry standard size (3-1/2 in.) and will accept either standard drain (included) or any garbage disposal unit (not included). Sink features a laser etched logo and includes a high-quality basket-strainer drain assembly, a stainless-steel bottom grid and instructions. Overall dimensions (flange-to-flange): 33 in. W (recommended 36 in. minimum sink base cabinet) x 21 in. front-to-back. Apron height: 10-1/2 in. Interior bowl dimensions: 31 in. W x 17 in. front-to-back x 10 in. D. Shipped in Eco-friendly heavy-duty honeycomb protective packaging.