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This Karran undermount kitchen sink is an 18-gauge stainless steel double-bowl sink with an unequal 40/60 bowl split, designed for kitchens where one basin handles prep while the other handles washing.
The 40/60 split gives the sink two distinct working zones. The smaller left bowl at 13-5/8 inches long and 6-3/4 inches deep is sized for rinsing produce, staging a colander, or handling small prep tasks without monopolizing the sink. The larger right bowl at 14-3/4 inches long and 8-3/4 inches deep provides the depth and width to handle a full load of dishes or a large stockpot. Having two separate drain openings means each side can be managed independently, which matters when one side is soaking and the other needs to stay clear. Because this is an undermount, the counter runs cleanly to the bowl edge on both sides, making it easy to wipe scraps directly in.
The sink is built from 18-gauge stainless steel, a thickness that balances durability and weight across the full double-bowl footprint. The stainless finish is consistent across both bowls and resists everyday kitchen use. The sink carries IAPMO certification, confirming it meets independent plumbing product standards. Inside dimensions are well-defined: the right bowl measures 18-1/2 inches wide, deep enough for a standard sheet-pan or large mixing bowl to sit without crowding.
This is a practical choice for a primary kitchen sink in a home, rental unit, or light commercial prep area where the cook wants separate zones for washing and rinsing without installing two independent sinks. The 36-inch minimum cabinet requirement and 31-1/2 by 20-1/8 inch footprint fit standard base cabinet configurations in most kitchens. It is an undermount design, so it pairs with countertops that support undermounting, such as quartz, granite, or solid surface. ADA compliance is not claimed for this model, so it is best suited to standard-height counter installations. Plumbers and installers will find the IAPMO certification straightforward to document on permitted jobs.
The left bowl is the smaller of the two at 13-5/8 inches long, 16 inches wide, and 6-3/4 inches deep. The right bowl is larger at 14-3/4 inches long, 18-1/2 inches wide, and 8-3/4 inches deep. The deeper right bowl handles larger loads, while the left works well for prep and rinsing.
Undermount installation requires a countertop material that can support the sink from below, such as quartz, granite, or solid surface. Laminate countertops typically do not support undermounting.
Yes. It carries IAPMO certification for plumbing product compliance.
The sink needs a minimum 36-inch base cabinet to fit its 31-1/2 inch length and 20-1/8 inch front-to-back measurement.
Choose this Karran 40/60 undermount sink when the kitchen needs two defined work zones in one clean stainless installation, with the depth and footprint to handle daily use in a full-size kitchen.
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