Features Undermount double bowl sink 18 Gauge thickness Type 304 surgical grade stainless steel R10 corner radius Satin finished sink bowls 3 1/2″ drain opening Stainless steel strainers included cUPC certified Limited lifetime warranty Minimum cabinet width: 33″ Dimensions Width: 31 1/4″ Length: 20 1/2″ Depth: 9″ *Shipping dimensions may be different.