Considering a granite composite sink for your kitchen? Whether you’re doing a complete kitchen remodel or are just replacing your sink, granite composite can provide an eye-catching accent to your home. 

Like granite countertops, granite kitchen sinks have been considered a luxurious addition to homes for decades. But in recent years, more and more homeowners have opted for granite composite instead. 

In this guide, we’ll talk about what granite composite is and why you may want to choose it for your kitchen sink. We’ll also talk about the different types of granite composite sinks and how to choose the right one for your home.

And, of course, we’ll provide you with our top five recommendations for the best granite composite sinks currently on the market. 

By the time we’re finished, it should be easy for you to select the perfect granite composite sink for your kitchen.

Our Best Granite Composite Sinks

  1. Elkay Quartz Classic 24-5/8″ x 18-1/2″ x 9-1/2″ Single Bowl Undermount Kitchen Sink (Our Top Pick)
  2. Kraus Quarza KGD-433B 33″ Drop-In/Undermount Granite 50/50 Double Bowl Sink In Black Onyx (Best Budget)
  3. Blanco Diamond Silgranit Super Single Dual Mount Sink (Best High End)
  4. Ruvati 33 x 22 inch EpiGranite Topmount Granite Composite Single Bowl Kitchen Sink
  5. Franke Gravity Double-Basin Drop-In Sink

What Are Granite Composite Sinks?

Made from a composite material made up of acrylic resin and natural granite stone dust, which is molded into the sink bowl design. Some people think granite composite is faux or replica granite, but it is made with real stone. It’s just not solid granite.

In addition to granite, granite composite may also contain other types of stone. Quartz is the most common.

Advantages Of Granite Composite

There are a few advantages to granite composite sinks.

For one, granite composite offers better durability than many other sink materials, comparable to granite. It’s scratch resistant and heat resistant, and resistant to chipping and discoloration.

You won’t have any problems with corrosion and rust like you do with cast iron, either.

Unlike granite, granite composite is non-porous which helps it prevent stains, makes it more hygienic, and makes it easier to clean and maintain than solid granite. 

It’s even naturally sound-absorbing, so you won’t have noise issues like with stainless steel. 

It’s still quite beautiful though. Granite composite offers the durability of a stainless steel sink but with the appearance of a natural stone sink.

It’s available in tons of different colors, though neutrals are by far the most common.

And despite all these advantages, granite composite is more affordable than a solid granite sink would be as well.

Disadvantages Of Granite Composite 

Granite composite isn’t without its disadvantages either though.

This sink material can be quite heavy (though not as heavy as solid stone), so your countertops will likely need some help to support the sink’s weight. While it’s easier to maintain than granite, granite composite is still harder to maintain than most other sink materials.

Unlike some sinks, you won’t be able to get away with just rinsing your sink after you use it. You’ll want to wipe your granite composite sink dry after use to avoid discoloration and mineral deposits that dull your sink’s color. 

For tough stains, you’ll want to use a gentle abrasive cleaner like Soft Scrub or Bar Keeper’s Friend and a scouring pad. Avoid steel wool and steel brushes.

You’ll also want to occasionally wipe the sink down with mineral oil to help the granite composite stay lustrous and keep the color vibrant. 

However, there’s no single standard for granite composite. One manufacturer’s granite composite will typically be different from another’s.

For that reason, always follow the manufacturer’s cleaning and maintenance instructions. 

Also for that reason, each manufacturer’s granite composite sinks will offer different levels of durability. Be sure to read the manufacturer’s claims for heat resistance and other durability factors to ensure you’re getting a good quality granite composite.

Finally, though granite composite is more affordable than granite, it’s still a premium sink material and it will cost you more than most other sink materials. 

What Are The Different Types Of Granite Composite Sinks?

Like with sinks made from other materials, there are three major categories of granite composite sinks. These categories are based on how the sink is installed.

With the exception of pedestal sinks, which are self supported, virtually all sinks require a cutout in the countertop for the sink basin. Sinks will typically come with a cutout template to make it easier to get it right without ruining your cabinets.

Drop-In Sinks

Drop-in or top mount sinks have a rim around the edge of the sink. They are simply dropped into the cutout and the rim sits on the counter around the edge of the cutout to support the sink.

This type of installation is pretty much exactly as easy and straightforward as it sounds, but the edges around the rim can collect dirt, making this type of sink a bit harder to keep clean.

Top mount sinks will typically have faucet holes pre drilled into the rim.

Undermount Sinks

Undermount sinks are installed underneath the counter of the sink. Like drop-in sinks, undermount sinks have a rim.

However, the rim has to be lined up with the edges of the cutout from underneath. Adhesive previously applied to the rim, along with clips installed once the sink is in place, then hold it in position. 

This installation method is clearly trickier, but there’s no visible rim around the top of the sink. This not only avoids dirt from collecting around a rim but also allows messes on the countertops to be easily brushed into the sink. 

The rim is not typically wide enough for faucet holes. Faucet holes will need to be made in the counter itself.

Dual Mount Sinks

In addition to top mount and undermount sinks, there are also dual mount sinks. These sinks don’t have a unique installation type of their own.

Rather, they’re designed to be able to be mounted like top mount or undermount sinks. The flat rim can rest on top of the counter or be glued underneath.

Dual mount sinks are a good option for when you want a top mount sink, but without a bulky rim, or if you’re planning on replacing your countertops down the road but don’t want to wait for that to replace your sink. Because dual mount sinks can be installed, either way, they typically come with faucet holes built-in. 

A Note On Granite Composite Sink Installation

Remember that granite composite sinks can be quite heavy, so you may not want to rely on these installation methods alone to support the weight of your granite composite sink, especially if you’re using a countertop material that’s not particularly strong. 

Additional support systems like straps, under-counter braces, and cabinet brackets may be necessary to support your sink’s weight. Undermount sinks are often better for use with these types of supports because the sink can more easily and discretely be supported by the rim rather than just the bowl.

What Do You Look For In The Best Granite Composite Sink?

But how do you choose just the right high-quality granite composite sink for your needs? Well, there are a few things to keep in mind.

Single Or Double Basin

For one, you can choose between one or two basin sinks. A two basin sink is convenient in that it allows you to use the sink for two things at once.

For example, you can use one side for a drying rack or soaking dishes while leaving the other side free for washing. 

However, the lack of a divider in a single basin sink provides a larger continuous space, which is very handy for washing large pots and pans. 

Single basin sinks are becoming increasingly trendy, but ultimately one style is not inherently better than the other. It’s simply a matter of personal preference.

Size

Similarly, size is another thing to consider. Sure, most of us would probably love a nice, large sink with plenty of room for everything we could possibly want to do, but remember to think about limitations from your space as well.

How does your counter and cabinet size limit the size of the sink you can choose? 

If you have a tiny kitchen, a huge sink can eat up valuable counter space, not to mention just feel overwhelming large for the space. On the other hand, maybe you’re not much of a chef, so you think a small sink is better to preserve counter space for making sandwiches and cereal, arranging takeout, and positioning your coffee maker just so. 

However, a tiny sink in a large kitchen can seem dwarfed and awkward too. Besides, plenty of us have been in situations where we wish we had a larger sink, but few of us have ever wished the opposite, so when in doubt, it’s probably better to go with a larger sink as long as it works with your space.

Warranty

In most sink reviews and roundups, we’d typically talk about making sure you’re choosing a sink made from a durable, high-quality material. Of course, here we’re talking about a single material that we know to be durable, but that doesn’t mean you don’t still need to think about durability.

For granite composite sinks, however, that means thinking about the warranty that the sink comes with. Since granite composite varies between manufacturers, a good warranty shows how confident the manufacturer is in their product and helps ensure that you’re covered if a problem occurs.

Appearance

While functionality certainly makes the biggest difference in your day-to-day life, appearance shouldn’t be underestimated either. Fortunately, granite composite is available in a ton of different colors and shapes, so you shouldn’t have any problem finding one that works with your kitchen decor. 

Compatible Accessories

While hardly essential, more and more sink manufacturers are making accessories to go with their sinks. These accessories can be handy for protecting and maintaining your sink or for just providing additional convenience while you cook and wash.

There are some accessories that are more common than others. 

For example, virtually all manufacturers make drain assemblies, covers, and strainers to go with their sinks, though garbage disposal flanges or adapters are typically sold with the disposal. Many manufacturers also make metal grids to protect the bottom of the sink and provide a convenient drying rack for glassware, utensils, and more. 

Less popular but still relatively common are cutting boards and colanders that can rest on the edge of the sink. Other accessories are available as well, just less commonly.

Some manufacturers will provide some of these accessories along with the sink while others only sell some or all of them separately. 

I wouldn’t call the availability of accessories a make or break factor when choosing a granite composite sink, but if you’re trying to decide between two sinks, more or better accessories may be a reason to choose one over the other. 

Best Granite Composite Kitchen Sinks Reviewed

Now you know all about granite composite sinks, so let’s talk about a few of the best examples you can buy.

1. Elkay Quartz Classic 24-5/8″ x 18-1/2″ x 9-1/2″ Single Bowl Undermount Kitchen Sink (Our Top Pick)

Okay, so technically Elkay Quartz Classic sinks are made of quartz, not granite. 

The two materials are very similar in both looks and durability, though, so this sink will still appeal to those looking for a granite composite kitchen sink. Like granite composite, quartz composite is hygienic, easy to clean, and impact, heat, and scratch-resistant. 

This particular quartz composite sink is a single bowl undermount sink that measures 24 ⅝  x 18 ½ x 9 ½ inches. It’s available in eight different colors.

Pros

  • Durability and appearance to match granite composite
  • Numerous color options
  • Can be bought alone, with a bottom grid, drain assembly, cleaning pad, and microfiber towel, or with all of those things plus an Elkay Everyday Faucet

Cons

  • Not technically granite composite
  • Light colors may be prone to staining

Buy The Elkay Quartz Classic 24-5/8″ x 18-1/2″ x 9-1/2″ Single Bowl Undermount Kitchen Sink On Amazon


2. Kraus Quarza KGD-433B 33″ Drop-In/Undermount Granite 50/50 Double Bowl Sink In Black Onyx (Best Budget)

Granite composite isn’t the most affordable of kitchen sink materials, but there are (comparatively) more affordable options. Our favorite option is the Kraus Quarza. 

As you can probably guess from the name, this sink also contains quartz, but it’s a quartz and granite composite. This double basin and dual mount sink are easy to clean, impact-resistant, and stand up to temperatures of 650 degrees Fahrenheit. 

It measures 33 x 22 x 9.5 inches in total and each bowl has dimensions of 14 x 16 x 9.5 inches.

Pros

  • Affordable price
  • Comes with a drain assembly basket, drain strainer, and towel.
  • Limited lifetime warranty 

Cons

  • Only available in Black Onyx

Buy The Kraus Quarza KGD-433B 33″ Drop-In/Undermount Granite 50/50 Double Bowl Sink in Black Onyx On Amazon


3. Blanco Diamond Silgranit Super Single Dual Mount Sink (Best High End)

If money isn’t really a concern, this Blanco sink may be perfect for you. 

The Blanco Diamond Silgranit Super Single Dual Mount Sink is a spacious single basin sink that measures 33.5 x 22 x 9.5 inches, though it’s also available in smaller sizes too. It can be mounted in either drop-in or under-mount styles.

The Silgranit material has an anti-bacterial coating to keep your sink more hygienic.

While the Blanco Diamond Silgranit Super Single Sink doesn’t come with any accessories, Blanco makes a compatible bottom grid as well as a cutting board, though the latter can only be used if you opt for drop-in installation.

Pros

  • Limited lifetime warranty 
  • Available in nine different colors from light shades like White and Biscuit to dark shades like Anthracite and Coal Black
  • Spacious size

Cons

  • High cost
  • Drain assembly must be purchased separately
  • Does not include mounting clips

Buy The Blanco Diamond Silgranit Super Single Dual Mount Sink On Amazon


4. Ruvati 33 x 22 inch EpiGranite Topmount Granite Composite Single Bowl Kitchen Sink

Our next pick is the Ruvati 33 x 22-inch epiGranite Topmount Granite Composite Single Bowl Kitchen Sink. 

epiGranite is Ruvati’s composite granite mixture which contains 85% crushed natural granite and a proprietary resin. It’s colored all the way through to prevent discoloration and is capable of withstanding temperatures as high as 536 degrees Fahrenheit.

The surface is treated to make it stain-resistant and anti-bacterial. The sink’s rounded corners also help with easy cleaning.

It’s a dual mount sink and comes in several different colors to give you versatile options.

Pros

  • Limited lifetime warranty 
  • 10 inch deep bowl
  • Comes with a strainer drain assembly and mounting clips

Cons

  • Some reviewers say the sink doesn’t fully drain, leaving a puddle in the sink

Buy The Ruvati 33 x 22 inch epiGranite Topmount Granite Composite Single Bowl Kitchen Sink On Amazon


5. Franke Gravity Double-Basin Drop-In Sink

Let’s finish up with another two basin sink, the Franke Gravity Double-Basin Drop-In Sink. While the other double basin sink we’ve talked about, the Kraus Quarza, had two basins of equal size, the Franke Gravity has one larger basin and one smaller basin. 

The larger basin measures 17 x 18.75 x 9 inches while the smaller one measures 16.5 x11.5 x 8 inches. The larger basin on the left is perfect for washing and stacking dishes while you cook while leaving the smaller right-hand basin is free for rinsing, food prep, and washing your hands. 

Pros

  • Dual mount installation
  • Anti-bacterial coating
  • Scratch resistant, stain resistant, and heat resistant up to 536 degrees fahrenheit
  • Available in four colors

Cons

  • May be prone to water spots

Buy The Franke Gravity Double-Basin Drop-In Sink On Amazon


Final Thoughts On Granite Composite Sinks

That about wraps things up on granite composite sinks. All of these are excellent options, but they’re not the only options. 

If you’re looking for a farmhouse sink, you can try the similar Elkay, Kraus, and Blanco all make apron front options. In fact, all of these companies make plenty of other granite composite sinks in other shapes and sizes, so if none of the ones on this list are quite what you’re looking for, be sure to check out their other offerings as well.