The Turbo Air - TSA-2-L1 - 57 inch Two Compartment Sink with 18 inch Left Drainboard gives you a separation between two sinks so you can use them at the same time for different things. The left drainboard measures 18 inches and can allow you some workspace nearby. The TSA-2-L1 sink is NSF approved and includes a stainless steel bowl for durability and easy cleaning. The tubular legs are strong and include adjustable ABS feet. Each sink on the Turbo Air 57 inch Two Compartment Sink with 18 inch Left Drainboard (TSA-2-L1) is 18 inches long and 18 inches deep.