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Internet # 306306058

Model # K-28000-CM1

Cairn 27-1/2 in. x 18-5/16 in. x 9-1/2 in. Neoroc Granite Composite Undermount Single-Bowl Kitchen Sink In Matte Black

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  • 27-1/2 in x 18-5/16 in x 9-1/2 in
  • 30 in. minimum base cabinet width
  • Neoroc is scratch, stain, chip, and thermal-shock resistant
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Product Details

About This Product

With soft French curves, the Cairn sink offers transitional style to suit contemporary and traditional kitchens alike. The Cairn sink is made of KOHLER Neoroc, a matte-finish composite material designed for extreme durability and unmatched beauty. Richly colored to complement any countertop, Neoroc resists scratches, stains, and fading and is highly heat- and impact-resistant. This sink includes a bottom sink rack to keep the surface looking new.


  • Minimum 30 in. base cabinet width
  • Single bowl
  • 9-1/2 in. depth
  • No faucet holes
  • Includes K-80038 bottom sink rack
  • Includes cutout templates and installation clips
  • KOHLER Neoroc composite is durable and built to withstand day-to-day cleaning tasks
  • Return Policy

Product Information

Internet # 306306058

Model # K-28000-CM1

Additional Resources




Bowl 1 Front to Back Width (in.)

18.3125 in

Bowl 1 Left to Right Length (in.)

27.5 in

Bowl 1 Top to Bottom Depth (in.)

9.5 in

Bowl 2 Front to Back Width (in.)

0 in

Bowl 2 Left to Right Length (in.)


Bowl 2 Top to Bottom Depth (in.)


Sink Front to Back Width (in.)

18.3125 in

Sink Left to Right Length (in.)

27.5 in

Sink Top to Bottom Depth (in.)

9.5 in


Bowl Split

No Split

Bundle Type

Sink w/ Accessories

Color Family



Matte Black

Drain Location


Faucet Included

Without Faucet


No Additional Features


Basin Rack

Kitchen Product Type

Kitchen Sink

Minimum Cabinet Size (in.)


Mount Type


Number of Bowls

Single Bowl

Number of Faucet Holes


Product Weight (lb.)

38 lb



Sink Finish Type


Sink Gauge

18 Gauge

Sink Material

Granite Composite

Sink Shape


Warranty / Certifications

Certifications and Listings

CE Certified

Manufacturer Warranty

Lifetime Limited Warranty

Questions & Answers

Q:What is the Gauge rating?
by|Nov 7, 2023
1 Answer
Answer This Question

A:  Hello Anna, this is Lisa with Kohler Co. I am glad to answer your question. Depending on where the measurement is taken the sink will have a material thickness of 0.25" - 0.50". Thank you for choosing Kohler.

by|Nov 7, 2023
    Q:My store doesn’t have one in stock. How white is the white? Does it have flecks in it, or is it a plain white?
    by|Nov 3, 2023
    1 Answer
    Answer This Question

    A:  Hello AliB, this is Lisa with Kohler Co. I am glad to answer your question. The finish is a matte finish and will have flecks within it. Thank you for choosing Kohler.

    by|Nov 6, 2023
      Q:Is therre a stainless steel grate that would cover the entire bottom of this sink, leaving an opening for the drain. If so, whas it the order number
      by|Jul 30, 2023
      1 Answer
      Answer This Question

      A:  Hi Meghan, this is Sarah with Kohler Customer Service. I am glad to address your question. We do not offer one rack to fit the entirety of this sink. In addition to the included rack, you may add an optional K-5192-ST (small rack) which does have the cutout hole for the drain. Thank you for choosing Kohler.

      by|Aug 1, 2023
        Q:What is the best cleaner to use? Stains are hard to get off?
        by|Apr 25, 2023
        1 Answer
        Answer This Question

        A:  Hello Chip, this is Lisa with Kohler Co. I am happy to answer your question. The recommended cleaner for your sink is our Neoroc Cleaner - https://bit.ly/3Awq5OZ. Thank you for choosing Kohler.

        by|Apr 25, 2023
          Showing 1-4 of 62

          Customer Reviews

          4.4 out of 5

          • 4.4 out of 129 reviews
          • 85% recommend this product
          Filter by:
          Showing 1-10 of 129 reviews
          Looks like a Cheap Slop Sink
          I was so disappointed when I received this sink. It looks very cheap and is so light and not a true white. I can't return it because I am renovating a home in Costa Rica and it would be close to impossible to find a replacement. This sink cost me ~$700 and looks like it should have cost $70. Would NEVER have ordered if I knew it looked and felt like it does. I am trying to take away from the focus of the sink because it is speckly, looks cheap (even though I paid $700 for it) and is ugly.
          Response from Kohler Product ExpertApr 29, 2022
          Susan, my name is Jessica with Kohler Customer Service. I am sorry to hear you are not satisfied with your Cairn sink. We put a lot of thought into our products, so it is unfortunate whenever we do not meet a customer's expectations. If we may further assist in any way, please contact our Customer Service team at KohlerCustServ@kohler.com. We are here to help. - Jessica P. Kohler Customer Service.
            Scratches Easily!
            We got the matte black sink and it scratches horribly. It has a very thin black coating that comes off easily. It will definitely not hold up to silverware and dishes being placed in it. Expensive for the low quality.
            Response from Kohler Product ExpertAug 28, 2021
            Hi Shan4, this is Sarah with Kohler Co. I'm sorry to hear your Cairn Neoroc sink has scratched and that the finish is coming off. To restore color and shine, apply 1 or 2 teaspoons of mineral oil to a clean, dry cloth. Wipe the sink thoroughly with the cloth to evenly distribute the oil in a thin layer. Allow it to sit for a minute, and then buff away any excess oil. Here is a link to view our care and cleaning guide for your sink: https://bit.ly/2vKrY9N. We suggest using a bottom basin rack to help prevent scratches. Kohler Co. warrants its Neoroc kitchen sinks to be free of defects in material and workmanship during normal residential usage for as long as the original consumer owns their home. Finish reduction, scratching, staining and acid or alkaline etching of the finish over time due to use, cleaning practices or water or atmospheric conditions, are not manufacturing defects but are indicative of normal wear and tear. Please email our Customer Service team at KohlerCustServ@kohler.com for additional assistance. Thank you. -Sarah S. Kohler Customer Service
              1 found this review helpful
              Looks beautiful
              The sink was installed last week. It looks really great, although I have a question. How should one clean it.
                • Recommended
                1 found this review helpful
                Beautiful sink and many compliments. Absolutely love!...
                Beautiful sink and many compliments. Absolutely love!
                • Verified Purchase
                I'm very pleased with the Kohler Neoroc sink we purchased. Our previous sink was stainless steel,...
                I'm very pleased with the Kohler Neoroc sink we purchased. Our previous sink was stainless steel, and if you weren't almost constantly washing and drying and polishing it, it looks dull and spotted. The black Neoroc looks sophisticated and, as soon as water drains, a quick wipe with a sink makes it look new. It dries amazingly quickly. I'm cautious about not scrubbing it - mostly it just takes a damp sponge, though I also use the cleansers Kohler recommends (Windex, or Soft Scrub gel). It's much easier to clean than the previous sink. We installed it in December so have been using it about 6 weeks. It looks great in our kitchen too. I also like the equal size bowls. They're large enough to fit most of the items I need to handwash, and the sink works to have a garbage disposal installed too if you want one (we did).
                  • Recommended
                  1 found this review helpful
                  [This review was collected as part of a promotion.] Totally in love with this undermount sink . I love that its designed and made to be durable against knicks and dings . The color on it is so pretty and not to dark of a color .i love the dact that it will match my walls perfectly once i get around to painting them .i like the nice sleek design on the curves of the sink .easy installation and comes with all the hardware needed
                    • Recommended
                    Love it
                    [This review was collected as part of a promotion.] This is a perfect elegant addition to your kitchen. It fits perfectly underneath the countertop for a beautiful look. The rack makes it so easy for every day use. It is deep enough that you dont have to worry about getting your shirt wet, but not so deep you are reaching all the way down. It is made extremely well, and very stable and strong.
                      • Recommended
                      Very Nice
                      [This review was collected as part of a promotion.] I haven't had a chance to install it yet but it is going to look great. It's really nice, it matches my countertop perfectly and it's going to give my kitchen a more modern look. It's nice and thick material, nothing like the cheap stainless steel. It looks like it's going to hold up nicely. I'm excited to get it installed.
                        • Recommended
                        Not an ordinary sink
                        The Kohler Cairn was shipped to my house and arrived in perfect condition. The Cairn was well packed and protected. It included the Cairn, mounting clips, bttom sink racks and a cut-out guide paper template. Most installs for solid surface undermount require special tools. My install was done on quartz solid surface so I let a pro cut out the stone counter. The sink can be a DIY install for other types of solid surface undermount, however, make certain you use the appropriate adhesive for your install. The sink itself is awesome. The neoroc material seems very durable. A plus is that it is quiet meaning items dropped in the sink don't make the noise like our older porcelain coated cast iron sink did. It also dampens the noise of the garbage disposer. The Cairn neoroc cleans easily but I have noticed it will scuff. Not a big deal, we had abrasion scuffs with our porcelain sink that occasionally needing buffing out. We found our stone counter cleaner "enhances" the neoroc material like what Armorall does for tires. The Kohler Cairn should last us many years of use.
                        • Recommended
                        Durable and Stylish
                        We were looking for a black sink to coordinate with a new countertop and this one met our needs. First of all, I added photos of everything that is included in the box. Keep in mind it comes with the absolute basics. The sink, some mounting clips, and a basin rack. That’s pretty much it, which is what you normally get with a sink but you should know nonetheless if this is your first sink purchase. The sink is very scratch resistant. I ‘carefully’ tested it in an area that would be hidden. It’s strong and my moderate (with a screwdriver tip) scratch test left no mark at all. I like that, especially since we are coming from a porcelain kitchen sink that would get scratched with a scrub brush hitting it wrong! It’s very stylish and looks great with Stainless and/or Black appliances. It has a very slim divider which gives you more capacity in the basins. The overall quality just feels top notch. It looks to have the quality of a sink that will last as long as I want it to. This really is a nice sink and I’m happy with the quality and appearance. I fully recommend.
                        • Recommended
                        3 found this review helpful
                        Showing 1-10 of 129 reviews