Stainless Steel (18 Gauge) Undermount Utility Sink. Overall Measurements: 19-5/8" x 20-1/2" x 9". Bowl Measurements: 17-3/4" x 18-1/2" x 9". Drain Opening: 3-1/2". Insulated Bottom. Template & Mounting Clips Included. Strainer Sold Separately. Ships in 3 to 5 business days