7 Best 28 Inch Undermount Kitchen Sinks 2026 | One Inch More Bowl

A 28 inch undermount sink is the right pick for a 33 inch base cabinet where a 30 inch sink fits the cutout but leaves margins so tight that one off-square cabinet rail forces a re-cut. The 28 inch size gives you 2 inches of total clearance in a 30 inch interior opening, which means the install tolerates the small variations every kitchen carries. After looking at 17 current 28 inch undermount sinks across stainless, granite composite, and fireclay, these seven stood out for build, drain layout, and bowl ergonomics.

Quick comparison

Sink	Material	Gauge / Thickness	Bowl depth	Drain position
Ruvati RVH7400	16 gauge stainless	16 ga	10 in	Rear offset
Kraus KHU100-28	16 gauge stainless	16 ga	10 in	Rear center
Sinkology Bredon	Copper	16 ga	9 in	Center
Blanco Precis 440197	Granite composite	0.25 in wall	9.5 in	Rear offset
Houzer CTS-2800	Fireclay	0.5 in wall	9 in	Center
Elkay Crosstown EFRU28179	18 gauge stainless	18 ga	9 in	Rear offset
Ruvati RVG1028	Granite composite	0.25 in wall	9.25 in	Rear center

Ruvati RVH7400, Best Overall

The RVH7400 is the strongest 28 inch single-bowl pick. 16 gauge T-304 stainless, full underside sound dampening, a 10 inch deep bowl, and a rear-offset drain that leaves the front of the bowl floor clear for stacking. The R10 corner radius (1 cm) hits the modern aesthetic without being so square that crumbs pile up.

The rear-offset drain is the practical reason this lands first. With the drain pushed to one corner, you can lay a standard 13 by 18 inch half sheet pan flat against the front and side walls. Most sinks in this size class force a sheet pan to angle, which scratches the bowl over years of use.

Trade-off: the bottom grid is sold separately for around 60 dollars. Plan to buy it because the deep bowl makes the scratch protection worth more here than on a shallower sink.

Kraus KHU100-28, Best Rear-Center Drain

Kraus’s KHU100-28 matches the Ruvati on gauge, material, and bowl depth but uses a rear-center drain instead of rear-offset. The center positioning makes the sink visually balanced and works equally for left- and right-handed users, which matters in shared kitchens.

The 1 cm corner radius and 10 inch bowl depth match the Ruvati spec. Sound dampening coverage is around 75 percent of the underside (versus 85 percent on the Ruvati), which is the small audible difference between the two picks.

Trade-off: the center drain wastes some bowl floor space compared to rear-offset, because nothing sits flat across the drain itself. For sheet pan flatness, the Ruvati wins; for symmetry, this is the pick.

Sinkology Bredon, Best Copper

Copper sinks are a design choice more than a function upgrade, but the Bredon earns a spot for build quality and finish stability. The hammered copper surface develops a patina over years of use that some kitchens want as the focal point. Functionally, copper is naturally antimicrobial and easier on dropped glassware than stainless.

16 gauge wall thickness gives the sink real weight and durability. The center drain layout works for the size class, and the 9 inch bowl depth balances ergonomics with capacity.

Trade-off: copper requires occasional waxing to maintain the finish and reacts with acidic foods (tomato, citrus juice) by spotting if not rinsed promptly. The premium over stainless is roughly 3x, which is the design tax.

Blanco Precis 440197, Best Composite

The Blanco Precis 440197 is the composite pick at 28 inches, with the SilGranit material (80 percent natural granite in acrylic resin) that resists scratches, heat to 530 F, and stains better than any stainless option. The 9.5 inch bowl with rear-offset drain matches the design priorities of the top stainless picks.

The standout feature is sound. SilGranit absorbs sound rather than transmitting it, which means running water and dishwashing register noticeably quieter than stainless in the same kitchen. For an open-plan kitchen where conversation happens during cleanup, this is the right pick.

Trade-off: weight is around 65 pounds, which means a second person for install. The cabinet rails also need to support the load, so check construction before buying.

Houzer CTS-2800, Best Fireclay

The Houzer CTS-2800 brings fireclay to the 28 inch class. Fireclay is fired ceramic with a glossy porcelain-like finish that some kitchens want as a design element. Functionally, it resists scratches and stains similarly to granite composite and runs essentially silent under running water.

The 9 inch bowl depth and center drain layout fit the 33 inch base cabinet standard. The half-inch wall thickness is the structural advantage that makes the sink quiet and durable.

Trade-off: fireclay can chip if struck by a heavy dropped pot. The chips affect appearance more than function but are visible against the white finish. The replacement cost (a new sink) is the practical risk to plan for.

Elkay Crosstown EFRU28179, Best Budget

The Elkay Crosstown EFRU28179 is the budget pick in this lineup. 18 gauge stainless instead of 16, a 9 inch bowl instead of 10, and a sound dampening coverage around 60 percent of the underside. For a rental property, a secondary sink, or a primary kitchen where total cost matters more than 20-year life, this is the right balance.

The rear-offset drain layout is the design carryover from premium picks, which means usable bowl floor for sheet pans is preserved at the lower price point.

Trade-off: thinner gauge dents more easily and transmits more noise. Plan to use a bottom grid (sold separately) from day one to protect the surface.

Ruvati RVG1028, Best Composite Value

The Ruvati RVG1028 is the composite alternative to the Blanco Precis at a lower price. The material is similar (granite particles in acrylic resin) with slightly less granite content (75 percent versus 80), which makes it marginally less heat-resistant but comparable in daily use.

The 9.25 inch bowl with rear-center drain and the included bottom grid are the practical advantages over the Blanco pick. Ruvati ships the grid in the box; Blanco sells it separately for around 80 dollars.

Trade-off: color options are fewer than Blanco (black, gray, white) and the surface texture is slightly rougher to the touch. For a kitchen that wants matte black or matte gray, this is fine. For brown, tan, or specialty colors, Blanco wins.

How to choose

Confirm the cabinet interior, not the nominal width

A 33 inch base cabinet has a nominal width of 33 inches but an interior opening between 30 and 31 inches depending on construction. Measure with a tape from the inside face of each rail before picking a sink. The clip requirements are non-negotiable.

Match material to your cooking style

Stainless is the default and the easiest to replace. Granite composite is the long-life premium pick. Fireclay is the design choice. Copper is for kitchens that want the sink as visual focal point. Pick the material that matches both your cooking habits and your aesthetic priorities because the sink is in place for 15 to 25 years.

Rear-offset drains earn their premium

A rear-offset or rear-center drain leaves the bowl floor clear for stacking dishes and laying sheet pans flat. A standard center drain wastes that floor real estate. The 50 to 100 dollar premium for rear-drain models pays back in daily ease of use.

Plan for the bottom grid

Every quality sink benefits from a bottom grid. Buy it at the same time as the sink to ensure correct fit because aftermarket grids rarely seat properly around the drain.

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 28 inch undermount sink is the right balance for a 33 inch cabinet, and the Ruvati RVH7400 leads the class on a combination of gauge, sound dampening, and drain placement. The Kraus, Blanco, and Houzer picks each win a specific scenario; the Elkay Crosstown is the right budget choice when cost matters more than long-term build.

Frequently asked questions