SINKS & FAUCETS · BUYING GUIDE

Best Undermount Kitchen Sinks

Updated

The best undermount kitchen sinks: stainless workstation, single bowl, double bowl and composite undermount sinks from Ruvati, Kraus, Kohler, BLANCO and Elkay, compared by size, depth, gauge and cabinet fit.

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Our picks at a glance

ProductAwardScore
Best overall 9.1 Check price
Best budget 7.7 Check price
Best premium 7.8 Check price
BLANCO DIAMOND Super Single SILGRANIT granite composite
Best composite 7.8 Check price
Best double bowl 7.1 Check price
How the editorial score works

The score rates documented features and practical tradeoffs on a 10-point scale, using the weighted criteria below. An 8 means strong support with one clear limit; a 9 means particularly complete support with minor limits. It is our editorial judgment from manufacturer information, not a hands-on test or a customer rating.

  • Material & gauge30%
  • Bowl size & layout30%
  • Sound dampening15%
  • Accessories & kit25%

The order of the picks also reflects who each product suits best, so it is not decided by the score alone. More on our method

  1. 01 · Best overall
    Ruvati 32-inch Workstation Ledge Rounded Corners Undermount 16 Gauge Kitchen Sink Single Bowl – RVH8301

    Ruvati · RVH8301 (Roma Pro)

    Ruvati 32-inch Workstation Ledge Rounded Corners Undermount 16 Gauge Kitchen Sink Single Bowl – RVH8301

    9.1/ 10
    Editorial score
    Material
    9.5
    Bowl
    9.0
    Sound
    8.5
    Kit
    9.0
    Why this score?
    Material & gauge · 9.5
    16-gauge T-304 (18/10) stainless, brushed finish
    Bowl size & layout · 9.0
    30-1/2 x 16 inch bowl, 10 inches deep, ledges and rounded corners
    Sound dampening · 8.5
    Thick rubber padding plus undercoating cuts noise and condensation
    Accessories & kit · 9.0
    Colander, board, foldable rack and grid included; no disposal flange

    Based on documented features and practical tradeoffs, not a hands-on test. Assessment: October 7, 2026. How the editorial score works

    Manufacturer information

    Best forCooks who want a workstation sink with the accessories already in the box

    A 32-inch undermount single bowl in 16-gauge T-304 stainless steel with front and back ledges that carry the included wood cutting board, colander and foldable drying rack. Rounded inside corners make the 10-inch-deep bowl easier to wipe out, and thick rubber padding cuts noise and condensation.

    Strengths

    • Colander, wood cutting board, foldable rack and bottom grid included
    • Fits 40 optional LedgeFit accessories

    Weaknesses

    • Garbage disposal flange not included
    • Needs a 36-inch base cabinet

    Dimensions, material and details

    Type
    Single-bowl workstation sink
    Dimensions
    32 W x 19 D in (exterior)
    Bowl depth
    10 in (bowl 30-1/2 x 16 in)
    Material
    16-gauge T-304 stainless steel (18/10), brushed finish
    Gauge
    16
    Mounting
    Undermount
    Minimum cabinet
    36 in
    Sound dampening
    Thick rubber padding plus undercoating
    Warranty
    Limited lifetime

    Details checked against the ruvati.com product page.

    Check price at Amazon
  2. 02 · Best budget
    Kraus Premier 31 1/2” Undermount Single Bowl 18-Gauge Stainless Steel Kitchen Sink

    Kraus · KBU14

    Kraus Premier 31 1/2” Undermount Single Bowl 18-Gauge Stainless Steel Kitchen Sink

    7.7/ 10
    Editorial score
    Material
    6.5
    Bowl
    8.0
    Sound
    9.0
    Kit
    8.0
    Why this score?
    Material & gauge · 6.5
    18-gauge stainless, thinner than 16-gauge picks
    Bowl size & layout · 8.0
    29-1/2 x 16-1/4 inch single bowl, 9 1/4 inches deep
    Sound dampening · 9.0
    NoiseDefend pads on all sides plus undercoating
    Accessories & kit · 8.0
    Drain, strainer, hardware and cutout template included; no bottom grid

    Based on documented features and practical tradeoffs, not a hands-on test. Assessment: October 7, 2026. How the editorial score works

    Manufacturer information

    Best forSimple remodels that want a big bowl and a seamless undermount edge

    A large undermount single bowl in 18-gauge stainless steel with a center drain, NoiseDefend pads and an anti-condensation undercoating. The kit includes a drain with removable basket strainer, mounting hardware and a cutout template.

    Strengths

    • Big 29-1/2 x 16-1/4 inch bowl for stockpots and sheet pans
    • Sound pads on all sides plus undercoating

    Weaknesses

    • No bottom grid in the box
    • Thinner 18-gauge steel than the 16-gauge picks

    Dimensions, material and details

    Type
    Single bowl
    Dimensions
    31 1/2 L x 18 3/8 W x 10 D in
    Bowl depth
    9 1/4 in (bowl 29 1/2 x 16 1/4 in)
    Material
    18-gauge stainless steel, satin finish
    Gauge
    18
    Mounting
    Undermount
    Minimum cabinet
    36 in
    Sound dampening
    NoiseDefend pads on all sides plus undercoating
    Warranty
    Lifetime limited

    Details checked against the kraususa.com product page.

    Check price at Amazon
  3. 03 · Best composite
    BLANCO DIAMOND Super Single

    BLANCO · 441764 (Cinder)

    BLANCO DIAMOND Super Single

    7.8/ 10
    Editorial score 3 of 4 criteria rated
    Material
    8.5
    Bowl
    8.5
    Sound
    n/a
    Kit
    6.0
    Why this score?
    Material & gauge · 8.5
    SILGRANIT composite resists heat and scuffs, per BLANCO
    Bowl size & layout · 8.5
    30.5 x 16.5 inch single bowl, 9.5 inches deep
    Sound dampening · Not rated
    The documented information does not establish this criterion.
    Accessories & kit · 6.0
    Clips, grid and basket strainer all bought separately

    Based on documented features and practical tradeoffs, not a hands-on test. Assessment: October 7, 2026. How the editorial score works

    Manufacturer information

    Best forBig-pot cooks who prefer a matte granite composite finish

    One large undermount bowl, 30.5 x 16.5 inches and 9.5 inches deep, made of BLANCO's SILGRANIT granite composite. BLANCO says the food-safe surface withstands heavy cookware, hot bakeware and scuff marks.

    Strengths

    • One wide bowl for large pans and baking sheets
    • SILGRANIT surface resists heat and scuffs, per BLANCO

    Weaknesses

    • Undermount clips, grid and basket strainer are separate purchases
    • Needs a 36-inch base cabinet

    Dimensions, material and details

    Type
    Single bowl
    Dimensions
    32.5 L x 18.5 W x 9.94 H in
    Bowl depth
    9.5 in (bowl 30.5 x 16.5 in)
    Material
    SILGRANIT granite composite
    Mounting
    Undermount
    Minimum cabinet
    36 in
    Warranty
    Limited lifetime (BLANCO sinks)

    Details checked against the blanco.com product page.

    Check price at Amazon
  4. 04 · Best double bowl
    Elkay Crosstown 18 Gauge Stainless Steel 31-1/2" x 18-1/2" x 9" 40/60 Double Bowl Undermount Sink

    Elkay · ECTRU32179LT

    Elkay Crosstown 18 Gauge Stainless Steel 31-1/2" x 18-1/2" x 9" 40/60 Double Bowl Undermount Sink

    7.1/ 10
    Editorial score
    Material
    7.0
    Bowl
    7.5
    Sound
    8.5
    Kit
    6.0
    Why this score?
    Material & gauge · 7.0
    18-gauge Type 304 stainless, thinner than the 16-gauge Ruvati
    Bowl size & layout · 7.5
    40/60 bowls of 12 and 17 inches, each 9 inches deep
    Sound dampening · 8.5
    Sound Guard pads and undercoating on sides and bottom
    Accessories & kit · 6.0
    No grids or drains listed as included

    Based on documented features and practical tradeoffs, not a hands-on test. Assessment: October 7, 2026. How the editorial score works

    Manufacturer information

    Best forHouseholds that hand-wash dishes and want two bowls

    An undermount double-bowl sink with a 12-inch and a 17-inch bowl, both 9 inches deep, in 18-gauge Type 304 stainless steel. Tight corners and a flat bottom add usable space, and Elkay's Sound Guard pads and undercoating reduce noise.

    Strengths

    • 40/60 bowls for washing and rinsing at once
    • Sound Guard pads and undercoating on sides and bottom

    Weaknesses

    • No grids or drains listed as included
    • 18-gauge, thinner than the 16-gauge Ruvati

    Dimensions, material and details

    Type
    Double bowl (40/60)
    Dimensions
    31-1/2 L x 18-1/2 W x 9 H in
    Bowl depth
    9 in (bowls 12 x 17 in and 17 x 17 in)
    Material
    Type 304 stainless steel
    Gauge
    18
    Mounting
    Undermount
    Minimum cabinet
    36 in
    Sound dampening
    Sound Guard pads and undercoating, sides and bottom
    Warranty
    Limited lifetime (Elkay Residential Stainless Sinks)

    Details checked against the elkay.com product page.

    Check price at Amazon
  5. 05 · Best premium
    KOHLER Prolific 33" undermount single-bowl workstation kitchen sink

    KOHLER · K-5540-NA

    KOHLER Prolific 33" undermount single-bowl workstation kitchen sink

    7.8/ 10
    Editorial score
    Material
    6.5
    Bowl
    9.0
    Sound
    7.5
    Kit
    8.0
    Why this score?
    Material & gauge · 6.5
    Premium 18-gauge stainless, thinner than the 16-gauge Ruvati
    Bowl size & layout · 9.0
    31-1/2 x 16-1/2 inch bowl, 10 inches deep, three graduated ledges
    Sound dampening · 7.5
    SilentShield sound absorption; construction details not given
    Accessories & kit · 8.0
    Board, two racks, colander and wash bin included; drain sold separately

    Based on documented features and practical tradeoffs, not a hands-on test. Assessment: October 7, 2026. How the editorial score works

    Manufacturer information

    Best forSerious home cooks who want a multi-level workstation

    A 33-inch undermount workstation sink in 18-gauge stainless steel with three graduated ledges inside the bowl and a cone-shaped drain. It comes with a bamboo cutting board, two grated racks, a colander and a wash bin, and uses Kohler's SilentShield sound absorption.

    Strengths

    • Three ledge heights so accessories stack and slide
    • Five accessories included

    Weaknesses

    • Drain or disposal flange must be bought separately
    • 18-gauge, thinner than the 16-gauge Ruvati

    Dimensions, material and details

    Type
    Single-bowl workstation sink
    Dimensions
    33 L x 17-3/4 W x 10-15/16 H in
    Bowl depth
    10 in (bowl 31-1/2 x 16-1/2 in)
    Material
    Premium 18-gauge stainless steel
    Gauge
    18
    Mounting
    Undermount
    Minimum cabinet
    36 in
    Sound dampening
    SilentShield sound absorption
    Warranty
    Lifetime limited (KOHLER stainless steel sinks)

    Details checked against the kohler.com product page.

    Check price at Amazon

COMPARE

Side-by-side comparison

Select a column heading to sort.
Ruvati 32-inch Workstation Ledge Rounded Corners Undermount 16 Gauge Kitchen Sink Single Bowl – RVH8301 Cooks who want a workstation sink with the accessories already in the boxSingle-bowl workstation sink32 W x 19 D in (exterior)10 in (bowl 30-1/2 x 16 in)
Kraus Premier 31 1/2” Undermount Single Bowl 18-Gauge Stainless Steel Kitchen Sink Simple remodels that want a big bowl and a seamless undermount edgeSingle bowl31 1/2 L x 18 3/8 W x 10 D in9 1/4 in (bowl 29 1/2 x 16 1/4 in)
BLANCO DIAMOND Super Single Big-pot cooks who prefer a matte granite composite finishSingle bowl32.5 L x 18.5 W x 9.94 H in9.5 in (bowl 30.5 x 16.5 in)
Elkay Crosstown 18 Gauge Stainless Steel 31-1/2" x 18-1/2" x 9" 40/60 Double Bowl Undermount Sink Households that hand-wash dishes and want two bowlsDouble bowl (40/60)31-1/2 L x 18-1/2 W x 9 H in9 in (bowls 12 x 17 in and 17 x 17 in)
KOHLER Prolific 33" undermount single-bowl workstation kitchen sink Serious home cooks who want a multi-level workstationSingle-bowl workstation sink33 L x 17-3/4 W x 10-15/16 H in10 in (bowl 31-1/2 x 16-1/2 in)

How we chose

We compared manufacturer specifications for material, steel gauge, bowl size and depth, minimum cabinet size, sound dampening, included accessories and warranty, and picked undermount models only, covering workstation, budget stainless, composite, double-bowl and premium options. Prices from the maker or a major US retailer were used only to spread the picks across budgets. We did not test these sinks; every detail comes from the manufacturer or a named retailer.

What to look for in an undermount sink

Confirm your countertop. Undermount sinks hang from the underside of the counter, so they need a solid material such as stone or quartz with a finished cutout. Laminate and tile generally call for a drop-in sink.

Decide on the reveal. The reveal is how much sink edge shows around the cutout. Talk to your fabricator about a flush, positive or negative reveal, and check the sink maker’s advice, since some workstation ledges should stay visible.

Size the bowl to your cookware. Check inside bowl length, width and depth, not just the outer size. A deeper bowl hides dishes and limits splashing, but very deep bowls mean more bending.

Look at noise control. Pads and undercoating on the sides and bottom make stainless steel sinks quieter and reduce condensation in the cabinet below.

Count the extras. Clips, drains, disposal flanges and bottom grids are not always included. Add them up before comparing prices.

Frequently asked questions

Can you put an undermount sink in a laminate countertop?

Usually not. Kraus says its undermount sinks are best suited to solid surfaces like granite, marble, soapstone and concrete, and not to laminate or tile. If you are keeping a laminate counter, look at a drop-in sink instead.

What is a workstation sink?

It has ledges inside the bowl that hold accessories over the water. The Ruvati RVH8301 ships with a cutting board, colander and foldable rack on one ledge level, while the Kohler Prolific has three ledge heights and five included accessories.

Are composite undermount sinks a good idea?

They are an option if you want a matte, stone-like bowl. BLANCO says its SILGRANIT composite, used in the Diamond Super Single, withstands heavy cookware, hot bakeware and scuff marks, and the company backs its sinks with a limited lifetime warranty.

What else do I need to buy with an undermount sink?

Check the box contents. The Kraus Premier includes a drain and mounting hardware but no grid, the BLANCO Diamond needs its clips and strainer bought separately, and the Kohler Prolific needs a separate drain or disposal flange.

What is the best 33 inch undermount kitchen sink?

The KOHLER Prolific 33-inch is the premium pick: an 18-gauge stainless steel single-bowl workstation sink with three graduated ledges inside the bowl. It comes with a bamboo cutting board, two grated racks, a colander and a wash bin. The drain or disposal flange must be bought separately, and it needs a 36-inch base cabinet.

What are the best stainless steel undermount kitchen sinks?

The Ruvati 32-inch workstation sink is the best overall pick, with 16-gauge T-304 steel and a colander, cutting board and drying rack included. The Kraus Premier is the budget pick in 18-gauge steel, the Elkay Crosstown is the double-bowl option and the KOHLER Prolific is the premium workstation. All of these are undermount and need a 36-inch base cabinet.