Undermount Small Radius Single Bowl, 18 Gauge This small radius undermount sink is made of 18-gauge 304 stainless steel with a satin polished finish. It features small radius corners, side and bottom seams, and stylish drain grooves for improved functionality. It is reinforced with sound absorption pads and coating. Accessories include the basket, bottom grid, colander, cutting board, and tray to enhance performance. This sink is long-lasting and easy to clean. Outside: 33-1/8"L x 19-3/16"W x 10"D Inside: 30-5/8"L x 16-5/8"W Drain Opening: 3-1/2" Minimum Cabinet Size: 33" Optional: BK710 Basket, CB710 Cutting Board, COL710 Colander, G710 Bottom Grid, SD-01 Strainer, T710 Tray Package Dimensions: 36-13/16" x 22-13/16" x 13-3/16" Package Weight: 45 lbs.