7 Best 27 Inch Undermount Kitchen Sinks 2026 | Drop The Lip, Gain Counter

A 27 inch undermount kitchen sink is the right pick when the base cabinet is 30 inches and a 30 inch sink would push too close to the cabinet rails for safe clips and a clean reveal. Undermount installation drops the rim below the counter surface, which means crumbs sweep into the bowl without catching on a lip, but also means the sink must hang correctly under the counter for its full service life. After looking at 19 current 27 inch undermount sinks across stainless, granite composite, and fireclay, these seven stood out for build, sound dampening, and drain layout.

Quick comparison

Sink	Material	Gauge / Thickness	Bowl depth	Drain position
Kraus KHU100-27	16 gauge stainless	16 ga	10 in	Rear offset
Ruvati RVH7300	16 gauge stainless	16 ga	10 in	Rear center
Elkay ELUH2716	18 gauge stainless	18 ga	7.5 in	Center
Blanco Diamond 440195	Granite composite	0.25 in wall	9.5 in	Center
Ruvati RVG1027	Granite composite	0.25 in wall	9.25 in	Rear offset
Houzer CTS-2700	Fireclay	0.5 in wall	8.5 in	Center
Kraus KGU-413B	Granite composite	0.25 in wall	9.5 in	Rear center

Kraus KHU100-27, Best Overall

The KHU100-27 is the workhorse of the 27 inch undermount class. 16 gauge T-304 stainless steel, full-coverage sound dampening pads on the underside, a 10 inch deep single bowl, and a rear-offset drain that maximizes usable bowl floor for stacking dishes. The R10 corner radius (1 cm) is tight enough to feel modern but not so square that crumbs catch.

The rear-offset drain is the practical feature that earns the top spot. With the drain pushed to the back, the bowl floor is clear from the sink front to roughly 70 percent of the depth, which fits a 13 by 18 inch sheet pan flat. Standard center-drain sinks force the pan to lean, which scratches the bowl over time.

Trade-off: the deep bowl makes reaching the bottom uncomfortable for shorter users. A 9 inch bowl is the more ergonomic depth if you are under 5 foot 6.

Ruvati RVH7300, Best Sound Dampening

Ruvati’s RVH7300 is built to the same 16 gauge spec as the Kraus but with thicker undercoating and more sound dampening pad coverage (roughly 85 percent versus 70 percent on the Kraus). The result is a sink that registers around 5 dB quieter under running water, which sounds like a small number but is noticeable next to a competing model in the same kitchen.

The rear-center drain is the difference from the Kraus pick. Centered side-to-side but pushed to the back, the layout works equally well for left-handed and right-handed users.

Trade-off: the X-shaped bottom grid (sold separately for about 50 dollars) is the only one that fits properly. Aftermarket grids do not seat cleanly around the drain placement.

Elkay ELUH2716, Best Budget Stainless

Elkay’s ELUH2716 is the budget pick in this lineup, with 18 gauge stainless instead of 16 gauge and a shallower 7.5 inch bowl. For a secondary sink, a rental property, or a primary kitchen where total cost matters more than 20-year durability, the ELUH2716 is the right balance.

The 7.5 inch bowl depth is the standout trade-off. Shallow bowls fit smaller dishes comfortably without bending but cannot accommodate large stockpots. For a household that cooks light, this is fine. For a household that runs full pasta pots regularly, step up to one of the 10 inch options.

Trade-off: the thinner gauge dents more easily under a dropped pot. Plan to use a bottom grid (sold separately) to protect the surface.

Blanco Diamond 440195, Best Granite Composite

The Blanco Diamond 440195 is the premium pick in granite composite, with the SilGranit material that combines 80 percent natural granite with acrylic resin. The result is a sink that resists scratches from knives, heat from pans straight off the stove (up to 530 F), and stains from coffee, wine, and turmeric better than any stainless option.

The 9.5 inch bowl depth and center drain layout fit a 30 inch base cabinet with room for clips. The matte finish hides water spots and fingerprints, which is the practical advantage over high-gloss composite finishes.

Trade-off: weight is around 60 pounds, which means a second pair of hands during install. The cabinet rails also need to support the load, so check the cabinet construction before buying.

Ruvati RVG1027, Best Composite Value

Ruvati’s RVG1027 is the composite pick at a lower price than the Blanco. The material is similar in spec (granite particles in acrylic resin) but with slightly less granite content (75 percent versus 80 percent), which makes it marginally less heat-resistant but otherwise comparable in daily use.

The 9.25 inch bowl with a rear-offset drain layout matches the design strengths of the top stainless picks: pan-flat capacity and quieter operation than stainless. The standout feature is the included bottom grid, which Blanco sells separately for around 80 dollars.

Trade-off: color options are fewer (black, gray, white) compared to Blanco’s range, and the surface texture is slightly rougher to the touch.

Houzer CTS-2700, Best Fireclay

The Houzer CTS-2700 is the fireclay option in the 27 inch undermount class. Fireclay is fired ceramic that resists scratches, stains, and heat similarly to granite composite but with a glossy porcelain-like finish that some kitchens want.

The 8.5 inch bowl depth is the trade-off versus the deeper stainless picks, but the half-inch wall thickness makes the sink essentially soundproof under running water. For an open-concept kitchen where dishwashing happens during conversation, fireclay is the quiet winner.

Trade-off: fireclay can chip if hit by a heavy dropped pot. The chips do not affect function but are visible against the white finish. Stainless and composite are more forgiving of accidents.

Kraus KGU-413B, Best for Tight Cabinets

The KGU-413B is the granite composite pick from Kraus, designed to fit cabinets where the interior opening is tight at 27 to 27.5 inches. The outer dimensions are 27 inches flat, which leaves a half inch of clearance per side in a standard 30 inch cabinet (interior 28 inches typical) and works in a 27 inch interior opening with careful install.

The 9.5 inch bowl depth and rear-center drain match the design priorities of the top stainless picks. The texture is the standout difference: Kraus uses a slightly smoother finish than Blanco, which fingerprints more easily but cleans faster.

Trade-off: the smaller flange (1 inch versus 1.25 inch on Blanco) means less margin for sealant errors during install. Use a higher-quality silicone like GE Premium Waterproof or Mapei Mapesil for the seal.

How to choose

Measure the interior of the cabinet

Cabinet nominal sizes (30 inch, 33 inch) describe the outside width. The interior opening between the rails is typically 2 to 3 inches less. Measure with a tape from the inside face of one rail to the inside face of the other before picking a sink size.

Pick the material for your habits

Stainless is the default for most kitchens and the easiest to replace if damaged. Granite composite is the long-life pick for kitchens you cook in daily. Fireclay is the design choice for open kitchens where the sink visually matters more than function alone.

Drain position changes daily use

A rear-offset or rear-center drain frees up bowl floor for stacking dishes and laying sheet pans flat. A center drain wastes that floor space but allows symmetrical use. If you cook with large cookware regularly, prioritize the rear drain.

Plan for the bottom grid

A bottom grid extends the life of any undermount sink by protecting the bowl floor from dropped pots and knives. Buy it at the same time as the sink to ensure correct fit; aftermarket grids rarely seat properly.

For related kitchen decisions, see our guide on single bowl vs double bowl kitchen sinks and the breakdown in undermount vs drop-in sink installation. For details on how we evaluate kitchen fixtures, see our methodology.

A 27 inch undermount sink is the right balance for a 30 inch cabinet, and the Kraus KHU100-27 leads the class on a combination of gauge, drain placement, and sound dampening. The Blanco Diamond and Ruvati RVG1027 are the composite picks; the Houzer CTS-2700 is the fireclay choice for a design-forward kitchen; and the Elkay ELUH2716 is the budget option when total cost matters more than long-term durability.

Frequently asked questions