Best Undermount Single-Bowl Kitchen Sinks for Your Kitchen
Choosing the right undermount single-bowl sink involves balancing size, gauge, and durability with everyday practicality. The Kraus lineup offers a solid range of 16- and 18-gauge stainless steel options that install beneath the countertop for a seamless look, easy cleanup, and dependable performance. This guide highlights five top selections that cover a variety of sizes—from 30 to 33 inches—and feature different gauges and included accessories. Use the quick comparison table below to compare outer dimensions, bowl size, and gauge at a glance, then dive into detailed product sections to see which model fits your kitchen best.
| Product | Brand | Outer Size | Bowl Size | Gauge |
|---|---|---|---|---|
| Kraus KHU100-32 | Kraus | 32″ × 19″ × 10.5″ | 30″ × 17″ × 10″ | 16 GA |
| Kraus Premier KBU44 | Kraus | 32 3/8″ × 18 1/2″ × 9″ | 30 3/8″ × 16 5/8″ × 8 5/8″ | 18 GA |
| Kraus Standart Pro 30-Inch KHU100-30 | Kraus | 30″ × 18″ × 10.5″ | 28″ × 16″ × 10″ | 16 GA |
| Kraus Fairlane KHU640-33 | Kraus | 32 1/2″ × 19″ × 9″ | 30 1/2″ × 17″ × 8 5/8″ | 18 GA |
| Kraus Kore KWU110-30 | Kraus | 30″ × 19″ × 10.5″ | 26″ × 16″ × 10″ | 16 GA |
Kraus KHU100-32 Undermount Sink
The Kraus KHU100-32 is a 32-inch undermount single-bowl sink built with heavy-duty 16-gauge stainless steel. Its exterior dimensions measure 32″ L x 19″ W x 10 1/2″ D, while the bowl is 30″ L x 17″ W x 10″ D, designed for a minimum 36″ cabinet. This model includes a protective bottom grid, a drain assembly with strainer, mounting hardware, and a cutout template, plus a Kraus towel for convenience. The under-mount installation creates a seamless transition from countertop to basin, simplifying cleanup by letting you sweep water and crumbs directly into the sink. Tight rounded corners enhance cleaning and reduce debris traps, while the 16-gauge steel offers enduring durability in a busy kitchen.
- Heavy-duty 16-Gauge stainless steel
- Under-mount installation for seamless countertops
- Includes bottom grid, drain assembly with strainer, mounting hardware, and cutout template
- Minimum cabinet size: 36″
- Tightly rounded corners for easy cleaning
Kraus Premier 32-Inch Undermount Sink (KBU44)
The KBU44 Premier model is a 32-inch undermount single-bowl sink crafted from 18-gauge stainless steel, combining durable construction with a modern profile. External dimensions are 32 3/8″ L x 18 1/2″ W x 9″ D, and the bowl measures 30 3/8″ L x 16 5/8″ W x 8 5/8″ D. It requires a minimum 36″ cabinet and comes with essential kit components: the stainless sink itself, a protective bottom grid, and a stainless drain assembly with a strainer. The 18-gauge steel provides a balanced mix of rigidity and cost, suitable for mid-range remodels or new kitchens seeking a quiet, refined look while maintaining practical basin space.
- Outer: 32 3/8″ × 18 1/2″ × 9″
- Bowl: 30 3/8″ × 16 5/8″ × 8 5/8″
- 18-Gauge stainless steel
- Bottom grid and drain with strainer included
- Minimum cabinet: 36″
Kraus Standart Pro 30-Inch Sink (KHU100-30)
The KHU100-30 Standart Pro model offers a 30-inch undermount single-bowl configuration with 16-gauge stainless steel. Exterior dimensions are 30″ L x 18″ W x 10 1/2″ D; bowl dimensions are 28″ L x 16″ W x 10″ D, with a minimum cabinet size of 33″. The kit includes a bottom grid, a drain assembly with strainer, mounting hardware, a cutout template, and a Kraus kitchen towel. The sink delivers a clean, professional look with easy countertop alignment and straightforward cleaning. Its heavier gauge supports durability for frequent use while maintaining a generous bowl space for daily tasks.
- 16-Gauge stainless steel
- Under-mount installation
- Includes bottom grid, drain with strainer, hardware, template, and towel
- Minimum cabinet size: 33″
Kraus Fairlane 33-Inch Undermount Sink (KHU640-33)
The Kraus Fairlane 33-inch sink is an 18-gauge stainless steel undermount designed for a modern kitchen with a spacious single bowl. Exterior dimensions are 32 1/2″ L x 19″ W x 9″ D, and the bowl measures 30 1/2″ L x 17″ W x 8 5/8″ D. A minimum 36″ cabinet is recommended. The kit includes a protective bottom grid, a drain assembly with a removable strainer, mounting hardware, and a cutout template. The undermount configuration creates a seamless countertop-to-sink transition, while the 18-gauge steel provides a balanced approach to durability, noise, and cost for mid- to large-size kitchens.
- 32 1/2″ × 19″ × 9″ exterior
- Bowl: 30 1/2″ × 17″ × 8 5/8″
- 18-Gauge stainless steel
- Bottom grid, drain with strainer, mounting hardware
- Minimum cabinet: 36″
Kraus Kore Workstation 30-Inch Sink (KWU110-30)
The Kraus Kore KWU110-30 is a 30-inch undermount stainless steel workstation sink with a 16-gauge build and a 10 1/2″ deep bowl. Outer dimensions are 30″ L x 19″ W x 10 1/2″ D; bowl is 26″ L x 16″ W x 10″ D, with a 33″ minimum cabinet size. This model stands out with its integrated ledge for sliding accessories, including a heavy-duty bamboo cutting board, a roll-up dish drying rack, a protective bottom grid, a drain assembly, and a decorative drain cover. The kit creates a versatile workspace over the sink while maintaining a clean, quiet operation and a durable 16-gauge surface.
- 16-Gauge stainless steel
- Integrated ledge for accessories
- Includes bamboo cutting board, roll-up drying rack, grid, drain and cover
- Minimum cabinet size: 33″
Buying Guide
Gauge And Durability
The gauge of a kitchen sink affects both durability and weight. A 16-gauge sink is thicker and generally more resistant to denting and noise, delivering a sturdier feel during heavy dishwashing or pots-and-pans cleanup. An 18-gauge model is lighter and often more affordable, while still providing long-lasting stainless steel performance. Some Kraus models pair 16-gauge construction with extra soundproofing features for quiet operation, whereas others in the line use 18-gauge steel to balance cost and durability. Choose based on anticipated use, countertop support, and long-term maintenance goals.
Size, Cabinet Fit, And Configuration
Accurate cabinet width and depth are essential when selecting an undermount sink. All five models shown here target common kitchen layouts: 30-inch, 32–33 inch, and 33-inch configurations. Check your cabinet’s minimum width and ensure there is enough countertop cutout space for the bowl and mounting hardware. If you prefer additional counter workspace, consider models with a larger bowl and a wider ledge. For busy kitchens, a larger bowl combined with a deeper interior reduces overflow risk and improves washing efficiency.
Included Accessories And Maintenance
Many Kraus sinks ship with practical kit components, such as bottom grids, drain assemblies with strainers, and cutout templates. Some options—like the Kore Workstation—include extras such as a cutting board and a drying rack, which add value for small or multifunctional kitchens. When evaluating, consider whether you’ll benefit from these extras or if you prefer to source components separately. Regular upkeep for stainless steel sinks includes wiping with a non-abrasive cleaner and avoiding harsh scouring pads to preserve the finish over time.
Sound And Finish
Stainless steel finishes, along with sound-dampening features, influence the overall experience. Heavier gauges tend to dampen noise more effectively, while some models with added padding reduce water impact and vibration during use. Finishes like Radiant Pearl or similar coatings are designed to hide minor scratches and maintain a bright, uniform appearance. If quiet operation is a priority in an open-plan layout, lean toward 16-gauge sinks with noise-reduction features or layered insulation.
Brand Confidence And Warranty
Choosing a reputable brand helps ensure long-term support and reliable performance. Kraus is a well-known name in kitchen sinks, offering multiple gauges and sizes along with comprehensive installation hardware and component kits. Review warranty terms and available customer support when evaluating options, as coverage can influence maintenance costs and future replacements. Matching a model to your kitchen’s design language and installation needs helps maximize value over time.