Best 28 Inch and 30 Inch Undermount Kitchen Sink in 2020

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If you are installing a sink today, it should be with you until your hair turns grey. However, there are many more criteria that the best sinks need to top.

And the exciting part is that the best 28, 30 inch undermount kitchen sinks could be purchased at a meager cost if you look good enough.

But aimlessly crawling through the net will not provide you quick and useful results. For that, you will need our help.

This article will give you a detailed description of the best 28, 30 inch Undermount kitchen sink in the market. Moreover, with the buying guide, you will be able to filter your requirements more efficiently.

Top 28-inch Undermount Sink

There are plenty of options in the market. Here are the top five we found out to be the best in the 28-inch category.

  1. Ruvati 28-inch undermount sink- RVH7250Best value low budget option
  2. Kraus KHU100-28 Kitchen SinkExcellent customer service
  3. ZUHNE Modena 28-Inch Undermount Kitchen Sink Our top pick
  4. Ruvati 28-inch Workstation Ledge Undermount Kitchen Sink – RVH8309The premium option
  5. Lordear 28 inch Undermount Undermount Kitchen Sink BasinTechnologically advanced

Here are the details about these market-leading kitchen sinks.

Pros

  • Value for your buck
  • Deep sink design
  • Drain cover and garbage disposal compatible
  • Includes most of the necessary accessories
  • Sound-guard and rubber layer
  • Great customer care
  • Limited lifetime warranty

Cons

  • The garbage disposal attachment part is absent. You will have to buy it separately

The RVH7250 stainless steel sink is a successful model of the Ruvati bottom mount sink designs. There are thirteen sizes of this model, but only one with a 28-inch cabinet size. So don’t mess it up when ordering the sink.

It is also the cheapest option on our list.

After the size, the first consideration is the material quality. Ruvati has used 16 gauge thick stainless steel of T-304 grade in this sink. It’s going to be hard to find a 28-inch sink this thick on this price.

The 18/10 ratios indicate that it has it is in the 18%-20% chromium content rage and 8%-10% nickel content range. So you have the maximum protection for your

This thick shield will be under a commercial grade brushed finish. Brushed finish is very good at hiding scratches. Under this layer, there is also a coat of sound guard material as well as rubber. So you will have the maximum sound cancellation.

There will be the following accessories in the package-

  • Cutout template
  • Mounting clips
  • Bottom rinse grid
  • Basket strainer
  • Installation guide

Many design features make this sink one of our top picks. It has a sloped bottom with an X shaped drain groove. Ruvati signature 10mm curved corners makes it easy to clean the sink. It is also compatible with garbage disposal flanges.

Lastly, it also serves you with a limited lifetime warranty.

Pros

  • Excellent customer service
  • Installation accessories added
  • Includes all necessary kitchen sink accessories
  • Excellent soundproofing
  • Very durable

Cons

  • No drain cover
  • The mirror-like finish shows water spots

Kraus is another brand creating innovative value for its customers. And the KHU100 is one of its best undermount sinks. But they have eight sizes of the sink. Carefully pick the size 28 kitchen sink.

For ensuring the best longevity, Kraus used 16-gauge stainless steel. It is the best thickness with the best grade of T-304 steel. Kraus didn’t give us the chromium and nickel measurements. But our experience tells us that it is entirely rust-resistant.

Kraus claims that the soundproof layer and extra padding limit 80% of the sink’s sound. There is no way to check the precise measurement, but it sure sounds light.

Alongside the main sink, you will also have the following accessories-

  • Stainless steel dish grid
  • Basket strainer (Three-piece)
  • Premium Kraus branded kitchen towel
  • Mounting hardware
  • Cutout template

The sink has a deep basin. It is enough to clean your biggest kitchen dishes and tools. Using and cleaning the sink afterward is very easy. The rectangular edges are a contributing factor here.

Lastly, the sink gives you a standard lifetime warranty. And we all know bout the customer service of Kraus.

Pros

  • Can take extreme heat and cold
  • Best quality steel
  • Retains shine and resists corrosion
  • Certified by USA and Canada
  • Excellent noise cancellation
  • Very affordable

Cons

  • No magnetic holders
  • No garbage disposal

Zuhne is an internationally recognized name for elite class kitchen sinks. But it also makes mid-range kitchen sinks with the same technology, which maximizes the value for the money.

This particular model has 13 different sizes. One of them is the 28-inch sink.

Besides Ruvati, this is also a very budget option for you.

The sink is made of T-304 stainless steel with a thickness of 16 gauges. Here the chromium contents are in the maximum efficient range which is 18/10. The company claimed to take the best surgical steel.

However, there was no way to test it. Nevertheless, the thick rim with the thin body makes it beautiful as well as corrosion and dent free. The sink has great noise cancellation with a 2.5 times insulation.

Long with the sink, you will have the following accessories-

  • Drain strainer lid
  • Scratch protector
  • Sponge holder

Cleaning it is very easy. You can just use regular soap to remove water stains. Curved corners make wiping very easy.

Lastly, the sink is certified to be safe from the organizations of the USA and Canada. With this confidence the company is giving out limited lifetime warranty.

Pros

  • Premium from every side
  • Workstation design
  • Includes every accessory possible
  • Best material
  • Sound guard
  • Space efficient

Cons

  • Low base taper angle

With the Ruvati RVH8309, we enter the premium end of the spectrum. But we focus on the best value for your money. And the extra effort you pay to get this sink is more than justified by the undermount workstation design.

Yes, you will have a full workstation complete with-

  • A cutting board
  • Fold rack for drying your dishes
  • A colander made of stainless steel
  • Bottom rinse grid
  • Basket strainer

The cutting board here is made of African Mahogany hardwood. You will also have an option with the design of the cutting board and to take a mixing bowl.

The fold rack can slide on the ledges to convert it into a convenient workspace, a major plus for small kitchens. There are six sizes of this sink. So remember to specify the size in your order.

Like all the best stainless steel sinks, it also used 16 gauge T-304 grade steel. There is an 18/10 chromium and nickel, so no worries for stain or rust. On top of that, there will be a commercial-grade brushed finish.

With the sharp corners, this finish not only looks good but also retains its charm by hiding scratches. And the metal thickness drastically reduces the probability of dents. Under this finish, there is a sound guard coat that minimizes noise and reduces condensation.

Sloped bottom groves also help the drainage. The 10-inch deep bowl has a 3.5-inch drain opening. This opening is suitable for any garbage disposal unit.

To help out the installation Ruvati will also supply the following with the sink-

  • Cutout template
  • Mounting clips
  • Installation guide

That’s about all on this sink.

Pros

  • Heavy duty
  • Nano brushed surface for a lotus leaf effect
  • PBD technique
  • Best sound padding
  • R10 curves
  • Most advance technology

Cons

  • No drain guard with the sink

This is the most technologically advanced kitchen sink in this list. However, the design is very simple, and the price is affordable as well. 28 inches is one of the eleven sizes available for this sink.

Like all our sinks in this list, it is also made with 16gauge T-304 type steel. This is available in two finishes-

  • Stainless steel
  • Gunmetal black

Gunmetal black is a kind of matte black with a touch of stainless steel. These finish layers can take from 1000℃ to subzero temperatures. Under the finish, there is a high-quality sound pad that has the best sound minimizations. Lordear also used the nano-PVD technique to make the sink anti-physical scratching and anti-bump.

The nano brushed surface also gives you a lotus leaf effect that lefts no trace of water or oil. This is why I like it the best. On top of that, an X grooved bottom also helps to drain larger debris.

Here are the accessories that will come with the sink-

  • Stainless steel dish grid
  • Cotton apron
  • Drain assembly
  • Oven mitt
  • Oven glove

Lastly, the manufacturers also give you a limited lifetime warranty.

Comparison table for 28-inch undermount sink

There no alternative to reading the full review. Nevertheless, I will give you this small 28-inch undermount sink comparison chart to display the key points side by side.
 RUVATI- RVH7250KRAUS- KHU100-28ZUHNE MODENARUVATI- RVH8309LORDEAR 28 INCH
STYLEGravenaSink onlyModern Kitchen SinkWorkstationModern Kitchen Sink
FINISHBrushed Stainless SteelStainless steelNatural Brushed StainlessBrushed Stainless SteelGunmetal Black
DIMENSIONS19 x 28 x 10 inches28 x 19 x 10 inches28 x 18 x 10 inches28 x 19 x 10 inches28x 18x 10 inches
WARRANTYLimited lifetimeLimited lifetimeLimited lifetimeLimited lifetime

Top 30-inch Undermount Sink

Now, let’s look at the 30 inches of our list.

Now let’s move on to their details.

  1. Ruvati Workstation Drop-in Stainless Steel Kitchen Sink – RVH8030

Pros

  • Workstation design
  • Deep basket strainer
  • Comes with installation accessories
  • Includes all necessary accessories for a workstation sink

Cons

  • The instruction manual is not well designed

This is another workstation design. You will have three sizes of this sink. Take the one with 30 inches.

Ruvati workstation sinks are famous for their accessories. These accessories are-

  • Woodcutting board
  • Deep colander made of stainless steel
  • Fold rack
  • Bottom rinse grid
  • Drain assembly
  • Basket strainer
  • Decorative drain cover

The fold rack can also convert your sink into a regular workspace with the help of slide ledges. You will also have the following things to help you with installation-

  • Cutout template
  • Mounting clips
  • Installation guide

There are two holes, primarily for the faucet and a soap dispenser. And the drain opening of the sink is measured at 3.5 inches. Like most Ruvati workstation sinks, you will have options for butcher block design and mixing bowls.

Ruvati used 16 gauge thick premium stainless steel of type-304. This is 37% thicker than most other sinks. It also falls in the chromium and nickel concentration of 18/10 percentages.

On top of that, there is a commercial grade brushed finish with a thick rubber padding. It also has a separate sound guarding layer. Small designing details like grooves and drain positioning minimizes splashes and makes the sink cleaner.

Pros

  • Surgical grade steel
  • Heavy-duty construction
  • Easy to clean
  • Listed with US and Canada certifying bodies
  • Deep basin
  • Includes most of the accessories

Cons

  • No warranty

It is one of our budget kitchen sinks. There are thirteen sizes, and the 30 inch is one of them. And from a brand like Zuhne, it is all money because they are one of the most popular brands out there.

This sink also has 16 gauge stainless steel of t-304 type. The rims are thicker than the other parts. Zuhne dramatically calls it a surgical grade, which it is. But it also falls in the 18/10 percentage grade of chromium and nickel content.

It has a Natural Brushed Stainless Steel. This finish includes vibration and noise cancellation properties. With the help of top-grade insulation, the sink can withstand boiling as well as freezing temperatures. Some other top features of this sink are garbage disposal compatibility, X-drain grooves, and tight radius corners.

The following accessories will accompany the sink-

  • Designer drains strainer with lid
  • Care and award flyers
  • A pair of colander sets
  • Bottom grate

For installation, you will also have the following help-

  • User manual
  • Mounting bracket
  • Cut out template

This one has a deep basin. So, large dishes won’t be a problem.

However, there is no warranty although it is certified by both Canada and the USA.

Pros

  • Uses sound barrier technology
  • Prevents condensation build-up
  • Easy to clean
  • Deep basin
  • Heavy duty construction

Cons

  • Satin finish can’t hide scratches very efficiently
  • No grooves

We like this sink for its clean and contemporary design. Kraus is well known for perfecting these kinds of designs with quality. There are eight sizes of the same design. But you just want the 30 inch one.

It is made of T-304 type stainless steel with a thickness of 16 gauges. So, it is undoubtedly dent-proof. The satin finish secures further rust and corrosion resistance. Hence, it will match most of the kitchen appliances.

Under the finish layer, it has a thick rubber padding covering 80% around the sink. You will also have a sound guard layer for better noise cancellation. And all of it is non-toxic.

With the sink, you will have the following accessories-

  • Stainless steel dish grid
  • Three-piece basket strainer
  • Premium kitchen towel

For the installation process, you will have-

  • Cutout template
  • Mounting hardware

The basin is quite big. It is easy to clean. The slope is not very steep. However, it helps with quick drainage.

Lastly, we all know about the customer service of Kraus. And there is a limited lifetime warranty to support that.

Pros

  • Combination of farmhouse and workstation kitchen
  • Best for large families with small kitchen
  • Best accessories
  • Nano PVD brushed technology
  • Free return and money back guaranty

Cons

  • The slope could have bees steeper

Farmhouse sinks are known for their heavy-duty persona. And Sarlai delivered this beast with the best kitchen sink technology. It is a combination of farmhouse and workstation styles. Among the three sizes, you want to be clear about the 30 inches in your order.

It is also made of the dent-resistant T-304 type 16 gauge stainless steel. This metal is entirely rust and corrosion-resistant. On top of the metal, there is a matte black nano brushed finish.

This finish gives you a lotus leaf effect. The PVD brushed technology also good with extreme temperatures and non-seepage water. You will not see the scratches for years. When you are purchasing a farmhouse kitchen, you need these kinds of measures.

The back and front of the sink have ledges that work as a track. This track is used to convert the sink into a cutting board or an entirely different sink mode. The cutting board can also be sued to hide the dirty dishes if you are not cleaning them instantly.

With the sink, you will have the following accessories-

  • Cutting board
  • Roll-up rack
  • Drain assembly
  • Bottom rinse grid
  • Colander

All of the metal components are made of the same stainless steel as the sink. There are other smart features like stylish X grooves.

Lastly, the sink offers an impressive three-month free return and money back guaranty. That is the best confidence they can show on their product.

Pros

  • Absorbs 95% of vibration and sound
  • Deep bowl and an R10 radius design
  • ISO standard production process
  • Easy to clean

Cons

  • No accessories come with the sink

Of the 30 inch sinks, this is our budget option. It is one of the three sizes available for this model. Appaso might not be as popular as other brands in this article, but they surely manufacture quality products.

It has the same 16 gauge thick steel with 18/10 chromium and nickel content. So, no worries about lost shine or rust. It is also the T-304 type stainless steel. So, you are gonna be quiet old when you have your first problem.

On top of the metal, there will be a thick rubber padding and a layer of heavy-duty substance. There is also a soundproofing layer that eliminates all the vibrations and sounds. That layer will absorb 95% of all the vibration and sound.

The design includes a deep bowl with R10 tight radius corners. It also reduces splashing. However, all the materials are lead-free and non-toxic. The ISO standard production process certifies it from cUPC, ANSI, and IAPMO. So, it is eco friendly and 100% recyclable.

Lastly, the product has a five-year limited warranty and a 90 days return and money back guaranty.

Comparison table for 30-inch undermount sink

Compare the chosen sinks to the basic metrics.
 RUVATI- RVH8030ZUHNE MODENAKRAUS KHU100-30SARLAI FARMHOUSE SINKAPPASO- nHS3018n
STYLEWorkstationModern KitchenSink OnlyFarmhouse & workstationSatin
FINISHBrushed Stainless SteelNatural Brushed Stainless SteelSatinMatte BlackSatined finish
DIMENSIONS30 x 22 x 10 inches30 x 18 x 10 inches30 x 18 x 10 inches30 x 22 x 10 inches30 x 18 x 10 inches
WARRANTYLimited lifetimeLimited lifetimeThree month free return and money back guaranty5 year warranty with money back and return policy

Buying guide for the best undermount stainless steel sink

When purchasing any sink, the size of it is the primary concern. But as this article’s main topic is based on 28 and 30-inch sinks, we will not talk about the size as much.

Color and finish

Try to take the styles and colors that are good at hiding marks and scratches. But their primary function is to look pretty. Our preferred finish in gunmetal black. However, a different version of stainless steel finishes is also good.

Material

After the size, built material is the most important thing in any sink. Most of the undermount sinks are made of stainless steel. However, they can also be made of the following materials other than stainless steel-
  • Granite composite
  • Cast iron
  • Fireclay
  • Stone
Now, there are many things to know when purchasing a stainless steel kitchen sink. Generally, all the manufacturers will use T-304 grade steel or type 304 grade steel. You might also see some number like 18/0, 18/8 and 18/10. These are the chromium and nickel content ratios of the steel. Chromium and nickel are used to maintain the rust-resistance and shine of the sink. The first number represents the chromium content of 18%. The second number tells you about the nickel content. 8% and 10% of nickel are almost the same. You don’t need to differentiate between them. However, on 18/0 means there is a minimal amount of nickel. Hence the shine if the sink will not be long-lasting. There are some sinks with 13/0 ratios. However, you should avoid them. They are very cheap materials for a home kitchen.

Sink thickness (gauge measurement)

Gauge is the measurement of the thickness of stainless steel kitchen sinks. The lower the number, the thicker the steel. And the thicker it is, the less probability of dents. In general, you will find 18 gauge to 23 gauge stainless steel sinks. However, there are extremes on both sides. But as we have shown you in our reviews, you can have 16 gauge sinks at nearly the same price. So, why go for less if you can have more. Here is a gauge to mm table-
GaugeInchesMillimeters
160.0521.29
170.0451.14
180.041.02
190.0360.91
200.0320.81
210.0280.71
220.0250.64
230.0230.58
240.020.51
250.01790.455

Sound guard

High-quality sinks include a layer of sound and vibration-absorbing material so that noise of dishwashing and friction can be minimized to 10% or less.

Other small features

Drain grooves allow easy drainage. If your sink has proper grooves, you will have less mess to deal with. The slope should be at such a level that tall glasses can be standing, but the water should be flowing. A bottom grid might reduce its importance. The finish should be able to take on extreme temperatures on both ends of the spectrum. It should also resist scratches and marks.

Accessories

A sink without accessories is surely a budget, one being very low priced. However, if you are paying well for the sink, you should have most, if not all, of the following accessories.
  • Bottom rinse grid
  • Basket strainer
  • Drain strainer lid
  • Scratch protector
  • Sponge holder
  • Cutting board
  • Fold rack
  • Colander
  • Drain assembly
Some brands even include some special items like aprons, oven mitt, oven gloves, and towels. For installation, the manufacturers might also give you the following things-
  • Cutout template
  • Mounting clips
  • Installation guide
  • Installation hardware
If not all, you should have most of them.

Frequently Asked Questions

Here are some questions that only a curious buyer will have. Everything generic is described elsewhere in the article.

1. What is the chromium and nickel content range?

A: In the USA, chromium content range is 18%-20%. More importantly, the nickel content is in the range of 8%-10%. So when they say it is an 18/10, it means the chromium is in the 18-20% range, and nickel is in the 8%-10% range.

2. Which is the best sink style?

A: In our understanding, a large workstation sink is the best choice. However, you will need a good amount of space for that. Get on with a deep basin.

3. Will the discount be the same as the cost of accessories if I buy one without accessories?

A: I don’t think that is a good idea. Buying accessories separately will cost more if you are buying all of them. However, if you don’t need all of them, it might save some money.

Conclusion

Wow, you still here. You must have been really serious about your kitchen. Who else would read a boring thesis for discovering the best 28, 30 inch Undermount kitchen sink? Anyway, if you have read so far, you would be exhausted. So I would advise you to take a moment and focus on the key points I have mentioned in the article. It will make your decision easier.
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