Abstract: A kitchen sink 1 includes: a first sink including a first sink main body that includes a first bottom board, a pair of first side boards attached to short sides, and a pair of first long boards attached to long sides; and a second sink including a second sink main body that includes a second bottom board, a pair of second side boards attached to short sides, and a pair of second long boards attached to long sides. The first sink main body includes a first lid detachably attached to cover a drainage outlet, the second sink main body includes a second lid detachably attached to cover a drainage outlet, and an accommodating portion is formed in the second sink.

Abstract: A sink system that has a sink assembly comprising a plurality of side wall plates and a bottom wall connected to the plurality of side wall plates. One or more of the sink side wall plates can comprise a first material. The first material can be an engineered stone composition. The sink system can comprise a countertop body. The countertop body can be formed of the first material. The sink system can comprise a plurality of sink columns cooperating with the plurality of sink side wall plates and bottom wall to form a sink basin.