16 Gauge Premium T-304 Grade Stainless Steel (18/10 Chromium/Nickel) Will Never Rust Or StainCommercial Grade Brushed Finish - Easy To Clean And Long-Lasting. Unlike Satin Finish, Our Brushed-Finish Hides Scratches And Matches Well With Your Kitchen Appliances.Heavy Duty Sound Proof Coating And Thick Rubber Padding - Minimizes Noise And Reduces CondensationExterior Dimensions: 31-1/2" (Wide) X 18-1/4" (Front-To-Back)Interior Dimensions: 29-1/2" (Wide) X 16-1/2" (Front-To-Back)Bowl Depth: 10"Minimum Base Cabinet Size: 36"Standard 3.5" Drain Opening Will Fit Any Garbage Disposal Unit.Included In Box: Sink, Cut-Out Template, Mounting Brackets, Rinse Grid, Basket StrainerUpc And Cupc Certified By Iapmo To Meet Us And Canada Plumbing Standards Including Ansi And Csa.