Question: what is the standard size of a kitchen sink cabinet?
Answer: Most base cabinets come in standard widths; a 30-inch width or a 36-inch width are most common. The height of the cabinet can be customized, but 36 inches is average. A typical 33-by-22-inch sink will fill a 36-inch base cabinet. If you're replacing a sink, make sure it fits the existing cutout.