SimplyCopper 16" Oval Hand Hammered Copper Bath Sink Undermount or Drop In SimplyCopper 16 x 12 is a simple bowl design, created of 18-gauge copper which is hand-hammered to provide a rustic antiqued look. This copper sink can be used as either a drop- in or an under mount. Outside Dimensions: 16" x 12" / Inside Dimensions: 14" x 10" / Depth: 4" Drain Opening: US standard 1-1/2" Drain Not Included 18 Gauge Copper Shown in Aged Copper Installation: Drop In / Under Mount (1" flat lip)