Abstract: Dual-sink assemblies for installation in diagonal corner cabinets and methods of manufacture are provided. A dual-sink assembly may include two sinks, attached by welding or otherwise, each having a length greater than a width. The length of one sink may be greater than that of the other sink. A diagonal corner cabinet may include a countertop, which may include a working edge and two rear edges, the two rear edges intersecting at a rear corner point. The dual-sink assembly may be installed in the diagonal corner cabinet with center points of the two sinks located along a transverse axis extending from the working edge toward the rear corner point of the diagonal corner cabinet and the sink having the greater length located closer to the working edge than the other sink. Accordingly, the dual-sink assembly may provide two sinks within the diagonal corner cabinet, while optimizing use of countertop space.