Best Undermount Bathroom Sinks reviewed and buying guide

Are you looking for a sink that will fit in the vanity area of your bathroom and provides excellent functionality?

If it is, then you are in the right way because we are going to talk about the Best Undermount Bathroom Sinks.

Undermount bathroom sinks do not only look beautiful and unique but also these types of sinks are easy to install on any countertop. They also customize accessories for instance faucets and drain holes. 

In the market, there are floods of sinks of different brands but not all the sinks made of high-quality materials.

We have gathered the top quality sink that will meet your requirements.

In this article, we will describe the Best Undermount Bathroom Sinks and the guidelines.

10 Best Undermount Bathroom Sinks Reviewed & Buyer’s Guide

Find The Best Undermount Bathroom Sinks Which Is Suitable For Small Vanities

Here we have analyzed the 10 Best Undermount Bathroom Sinks reviews so that you can choose any one of them.

Reviews help to enrich your knowledge about different products because through the review you can know the advantages and disadvantages of a product.

Let’s learn about Best Undermount Bathroom Sinks through the review.

Nantucket Sinks UM-16×11-W 16-Inch by 11-Inch Rectangle

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It is hard to get a perfect shape sink for a kitchen. Nantucket 11-Inch Bathroom Sinks come with an unusual size that is more appealing than any other bathroom sinks.

It is small and more compact with a deeper bowl that can make your bathroom more attractive and classy. This compact size makes the sink perfect for smaller space.

This bathroom sink comes with a standard drain hole that comes pre-drilled and also includes a centered single hole overflow.

The sloping side is combined with the flat bottom that brings a transitional, modern style. The color of the sink is bright white that will match the coolest white in any bathroom.

The shiny glazed finish is nice to look at and easy to clean. The interior surface is super cool to wipe down and resist staining. The Nantucket Rectangle Bathroom Sinks provide customer satisfaction by offering a lifetime limited warranty. 

It comes with a template for granite or quartz countertop installation that is very helpful for you to install the sink.

The affordable price tag makes the sin more appealing to those who can buy the product. If you love the product for its high-quality functions, you can easily purchase it because the price is in your hand. 


  • This crisp white ceramic sink is bright and beautiful for any bathroom décor
  • It has a limited lifetime warranty that ensures the quality of the product
  • The deep bowl is enough to accommodate any bathroom task
  • Shiny enamel glaze is easy to clean and do not damage over time
  • It comes with a compact size that is perfect for any tiny and smaller spaces and bathrooms
  • Standard drain hole and flat bottom evoke a transitional style
  • It is very affordable and appealing for those on a budget
  • On the inner front wall of the sink, an overflow is centered that can stop overfilling
  • This model has a 1.75″ drain diameter

Technical Details

  • Model number- Um-16×11-W
  • Manufacturer- Nantucket Sinks
  • Product dimensions- 18 x 13 x 7.5 inches
  • Item weight- 14 pounds
  • Color- White
  • Size- 1-(Pack)
  • Style- No-rimming
  • Finish- Porcelain Enamel Glaze
  • Material- Ceramic Sinks
  • Shape- Rectangular
  • Installation method- Undermount
What We Liked
  • The compact size is perfect for smaller spaces
  • White ceramic and polished glaze suits any kitchen décor
  • Sloping sides and flat bottom is perfect
  • The contemporary look makes your bathroom more stylish
What We Didn't Like
  • This model does not come with drains or mounting kits

KOHLER K-2209-0 Caxton Under-Mount Bathroom Sink, White

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Kohler Caxton 2209 designed with a lot of features for a reasonable price. No matter the style of your bathroom, this classic design looks great in every bathroom layout.

If you like unique and special touches, then this best Undermount Bathroom Sinks is for you. The drain of the sink is situated toward the back of the interior.

The model is very effectively designed for this reason you do not need to worry about flooding or overfilling because this model comes with a single hole overflow at the inner front wall to avoid flooding. 

This model is one of the best unique undermount bathroom sinks that is deep enough to contain any splashing and small enough to fit anywhere in your bathroom.

For natural stone countertops such as granite or quartz, this model is the perfect fit. As the shape of the sink is oval, there are no corners or edges so no dirt can settle in the sink. The shape and the smoothness make the sink easy to clean. 

The ceramic of the sink is extra durable and the shiny glaze finish resists stains and dent. The crisp and pure white complements the bathroom décor and looks fresh for years to come.

The Kohler brand is very well known so you can easily depend on it. Kohler Caxton 2209 review will give you an elaborate description of the product. 


  • This oval shape bathroom sink is easy to clean 
  • Designed with an overflow drain
  • Does not come with faucet or faucet hole
  • The classical shape with smooth, curving interior bowl offers superior drainage
  • High shine enameled glaze lasts for a long time
  • Shape and high-quality surface materials make the sink easy to clean quickly
  • For classic appearance, the standard drain hole is positioned at the back of the sink
  • To avoid messes, a single overflow hole is drilled
  • Template and installation instructions are included in the box for easy use and installation

Technical Details

  • Model number- 117044
  • Manufacturer- KOHLER
  • Product dimensions- 19.13 x 15.69 x 9.31 inches
  • Item weight- 16.7 pounds
  • Color- White
  • Size- Pack of 1
  • Style- No-rimming
  • Finish- White
  • Material- Vitreous china
  • Shape- Oval
  • Installation method- Undermount
What We Liked
  • Overflow drain included avoiding the mess
  • The oval shape is easy to clean
  • Drain positioned near back of the sink to create beautiful appealing
  • The white ceramic surface looks shiny
What We Didn't Like
  • Does not have a warranty

Kraus KCU-251 Elavo Bathroom Undermount Sink

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If you are looking for the best bathroom sink for face washing, then you should go for Kraus kcu-251.  This model updates your bathroom with a clean and stylish look.

The versatile features of the Kraus under-mount bathroom sink make it one of the best rectangular undermount bathroom sinks.

The high gloss finish makes the sink easy to clean and complements any bathroom layout from classic to contemporary. These small bathroom sinks are perfect in both appearance and structure. 

Kraus undermount sink is designed to fit lifestyles as well as budgets. This product also focuses on versatility, enhancing any décor with a timeless style. You can accomplish all your bathroom works in Kraus bathroom sinks.

This product is made of using top-notch materials for longer-lasting and makes your daily life simple. People are using this product with great enjoyment and also giving their feedback regarding the sink. Kraus kcu-251 reviews will make you clear why people are loving the product and also explain its pros and cons.


  • Made of high-quality ceramic
  • This product is scratch and dent resistant and will not fade over time
  • Designed with a smooth non-porous surface that is resistant to bacterial growth
  • A premium baked-on glaze for a high-gloss finish makes the sink easy to clean
  • All mounting hardware is included in the box
  • It has a lifetime-limited warranty
  • The under-mount installation creates a seamless transition between the sink and the countertop
  • Easy to use and clean

Technical Details

  • Model number- KCU-251
  • Manufacturer- Kraus
  • Product dimensions- 23.26 x 16.25 x 8.1 inches
  • Item weight- 25.8 pounds
  • Color- White
  • Size- 23 Inch
  • Style- Modern
  • Finish- Ceramic
  • Material- Porcelain, Ceramic
  • Shape- Rectangular
  • Installation method- Undermount
  • Number of holes- 1
What We Liked
  • It looks beautiful in any bathroom décor
  • Easy to install
  • The materials make the sink easy to clean
  • Perfect fit for any tiny bathroom
What We Didn't Like
  • The sink may come without the included parts

Nantucket Sinks UM-13×10-W 13-Inch by 10-Inch Oval Ceramic Undermount Vanity Sink, White

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Usually, a large sink is not much suitable for a compact bathroom, as you do not need to wash large instruments in the bathroom sink. If you are looking for a perfect size sink for your compact bathroom, this model will be the best choice.

Best Bathroom Sink always makes your bathroom classy and stylish. This oval undermount sink is small but highly functional. 

This model is great for small bathrooms or powder rooms and increases surrounding countertop space for storage or other uses. You may wonder about the water filling.

You do not need to worry because this model comes with a standard drain hole to avoid flooding and overfilling of water. It comes with an installation instruction that helps you to install the sink.

This tiny bathroom sinks with vanity are easy to clean and the oval shape shape gives a classy and traditional look. An overflow hole is situated in the inner front wall of the sink. This sink is looking great in every kitchen décor and will be looking great as long as you own it.

The smooth surface is easy to clean and the high shine enamel glaze can keep it looking pristine for years to come.


  • Compact size is perfect for smaller bathroom
  • Bowl depth is 6.125 inches
  • The oval shape provides a classic and traditional look to any bathroom décor
  • The smaller shape sink saves counter space where you can keep various instruments
  • The true, crisp white color made of ceramic porcelain
  • Designed with standard drain hole size with a single overflow hole in the inner front wall of the sink
  • It has a limited lifetime warranty that makes you sure, this sink will stand the test of time
  • To get a shiny look, it added a polished enamel glaze that is easy to clean and wipe down
  • Comes with an instruction manual to make your installation easy and simple

Technical Details

  • Model number- UM-13×10-W
  • Manufacturer- Nantucket Sinks
  • Product dimensions- 15 x 12 x 7.5 inches
  • Item weight- 8.65 pounds
  • Color- White
  • Size- Оne Расk
  • Style- No-rimming
  • Finish- Ceramic
  • Material- Ceramic Sinks
  • Shape- Oval
  • Installation method- Undermount
What We Liked
  • Small hand washing sink size is perfect for every bathroom task
  • The oval shape does not have any corners 
  • Shiny enamel glaze is easy to clean
  • Installation instruction included
What We Didn't Like
  • No drain or drain assembly included with the sink

DECOLAV 1402-CWH Callensia Classically Redefined

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Decolav 1402 sink is made of double-fired vitreous china that has been gaining popularity for its high-quality functions and durability. Decolav undermount sink has a smooth surface that is easy to clean and cuts cleaning time in half.

The white bright color repels stains and gives a shiny look. Decolav vanity has a standard sized drain hole that can be customized with your own fixtures. 

The bottom side of the sink is slightly rounded so it does not have any corners where dirt can stick. The rectangular shape of the rim makes installation a breeze and the dimensions can fit well into any type of kitchen countertop.

The bright and true white color looks great and fresh in any bathroom. A single overflow hole is included at the front of the sink so that water can easily go out. If you want to know more about the product, stay connected with these decolav sink reviews.


  • It has a generous rim for under-mount installation
  • Installation is easy
  • It is affordable and the price tag makes this model appealing for small budgets
  • The double-fired vitreous china materials make the product durable and rust-resistant
  • Comes with standard-sized drain hole
  • The beautiful pure, true white color suits all types of bathroom décor
  • It is stain and chip resistant
  • In front of the sink, a single overflow hole is added
  • For good drainage system, the interior is curved making
  • It is ADA compatible

Technical Details

  • Model number- 269037
  • Manufacturer- Decolav
  • Product dimensions- 8.25 x 15.25 x 21.21 inches
  • Item weight- 20 pounds
  • Color- White
  • Size- full
  • Style- No-rimming
  • Material- Ceramic Sinks
  • Shape- Rectangular
  • Installation method- Undermount
  • Number of holes- 1
What We Liked
  • Pure white color looks great in every bathroom style
  • Double-fired vitreous china is durable and sturdy
  • Curved bottom with straight sides that makes the sink easy to clean
  • Rectangular rim offers easy installation
  • Comes with generous proportions
What We Didn't Like
  • This product may arrive with defects

KINGSMAN Durable 21.5 Inch Rectangle Undermount

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If you want to get a sink at a decent price, then go for KINGSMAN Undermount Sink.  This bathroom sink provides all the basics you want and the interesting part is you are getting the sink at a very lower price. The pure white color of the sink complements your kitchen countertop and the wall decoration that you have.

So you do not need to worry about the matching of the sink with your bathroom decoration. It goes into every bathroom style.

The logo of the sink is an absence that makes it more attractive and fresh. You can install the sink and drain at one time because it is designed with a pop-up drain feature.

The single hole overflow is positioned on the front wall of the sink and that makes it one of the Best Rectangle Bathroom Sinks. This feature can prevent any messes or flooding. This sink looks great and easy to clean because it is made of vitreous china and polished to a high shine. 

A mounting kit comes with the sink, so you do not need to purchase any extra material to install the sink. The limited lifetime warranty gives you peace for lifetime use. Let’s learn a lot more information through KINGSMAN sinks review.


  • The polished surface is easy to clean
  • The pure white color can complement any bathroom style
  • It has a lifetime-limited warranty that offers peace of mind over time
  • Made of Vitreous china that s durable and sturdy
  • It is stain and scratch-resistant and easy to clean and wipe down
  • To prevent messes and over flooding, it has a single hole overflow at front of the sink
  • Designed with a pop-up drain to make installation easy

Technical Details

  • Model number- RP462P-FBA-UK
  • Manufacturer- KINGSMAN
  • Product dimensions- 24.3 x 18.4 x 11.7 inches
  • Item weight- 1 pounds
  • Color- White
  • Size- 21.5 Inch
  • Finish- Polished
  • Material-
  • Shape- Rectangular
  • Installation method- Undermount, Drop-In, Wall-Mount
What We Liked
  • True white color fits every bathroom style
  • Spacious sloping bowl included
  • It does not have any logo
  • Overflow included that prevent messes and over flooding
What We Didn't Like
  • Overflow does not make of ceramic rather it has chrome plastic

Friho 18.5”x13.8”x7.9” Modern Sleek Rectangular Undermount

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Friho Rectangular Sinks true white color gives your bathroom new looks that will make you pleased. The glazed surface of the Friho Bathroom Sink is easy to clean and wipe down and this sink is also resistant to stains and scratches even after a lifetime usage.

The high polished variety finish makes the model one of the best rectangular undermount bathroom sinks.

If your bathroom decoration is more modern and minimalist, then Friho Undermount Bathroom Sinks could be a perfect fit and the sloping bowl brings a contemporary look and sophistication to your bathroom. 

The standard-sized drain works well with the pop-up drain and prevents the sink from over flooding. It does not require a huge hole cut into a countertop so you can easily install it in smaller spaces.

As it is a lighter and compact size, you can easily install it without multiple helpers. 


  • It is designed with beautiful lines that look great in any contemporary bathroom
  • Overflow drain is included in the back of the sink
  • The standard-sized drain can fix any popup drain accessory
  • It is constructed with durable and dense porcelain ceramic
  • It has a 10 years warranty with a money-back guarantee 
  • Smaller dimensions sink that can fit any countertop and save lots of spaces
  • The shiny glazed surface is easy to clean and wipe down
  • It is lighter and easy to install

Technical Details

  • Model number- BSFRT003S
  • Manufacturer- Friho
  • Product dimensions- 23 x 18.9 x 12.8 inches
  • Item weight- 16.02 pounds
  • Color- White
  • Size- 18.5”
  • Style- Ceramic-03
  • Material- Ceramic
  • Shape- Rectangular
  • Installation method- Undermount
What We Liked
  • Money-back guarantee that increases your confidence to purchase the product
  • Sleek, modern lines look great
  • Easy to clean and wipe down
  • The durable glaze is rust and scratch-resistant
What We Didn't Like
  • Does not come with mounting kits

American Standard 0614000.020 Studio Ceramic

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American Standard Bathroom Sink is made of high-quality materials that make the product more durable and long-lasting. The hard vitreous china is easy to clean and wipe down. Under the vitreous china glaze is a high-quality ceramic that is very sturdy and looks new for all the time.

Though the color is white, it is more of an off white with a yellow tinge than a true white. The color suits in every bathroom décor and gives your bathroom an aesthetic touch. 

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American Standard Ceramic Sinks have a rectangular mounting surface that makes the installation easy. The interior of the bowl is flat but a curved bottom.

This design offers no garbage stick in the corners of the sink because it does not have any edges or corners where messes can stick.

A standard-sized drain hole and an overflow option are positioned in the front of the American Standard Undermount Sinks. This feature prevents over flooding and overfilling of water. 

The unglazed rim is perfect for installing in a granite or natural stone countertop. To get a more secure attachment, you can use silicone to the unglazed portion of the rim.

A full mounting kit is included with the sink, so you do not need to purchase it separately and installation is also included with the sink. 


  • Made of vitreous china fur durability and longevity
  • Overflow capacity prevent over flooding
  • A gentle curve in the bottom makes a visual line and does not allow garbage stick
  • Rim is perfect for normal installation
  • Comes with full undermount kit 
  • Designed with unique interior shape along with a standard rectangular rim
  • Comes with a standard-sized drain hole
  • A permanently visible logo has inside the sink

Technical Details

  • Model number- 0614000.020
  • Manufacturer- American Standard
  • Product dimensions- 17.9 x 16.25 x 9.81 inches
  • Item weight- 25.8 pounds
  • Color- White
  • Size- 1-1/4 in
  • Style- Self-rimming
  • Material- Ceramic Sinks
  • Shape- Rectangular
  • Installation method- Undermount
What We Liked
  • Vitreous china interior makes the sink durable
  • Unplugged rim provides secure attachment
  • Installation instruction included
  • A mounting kit is included in the box
What We Didn't Like
  • A logo is permanent and visible

Friho 14.96”x14.96” Modern Above Counter Square Vessel Vanity Sink White Porcelain Ceramic Lavatory Bathroom Vessel Sink

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Friho Sinks is perfect for a bathroom with farmhouse décor or design that is more modern. The rectangular shape is classy and modern that complements your bathroom décor.

The solid porcelain ceramic has a high polish glaze that can resist chipping and staining over time. The smooth surface of the Friho Square Bathroom Sink is easy to clean and wipe down. 

The most appealing feature of this Best Porcelain Ceramic Sink is it has padding within the bottom of the sink that helps to minimize noise. When you are using the basin, it will be calm and quiet.

It is the best Counter Bathroom Sink that is reasonable for you.


  • The basic rectangular shape makes the sink easy to clean
  • Soundproofing feature provides you a calm and quiet environment
  • Porcelain ceramic surface and the pure white color fit in any bathroom décor
  • The high polished finishing glaze is easy to clean and wipe down
  • Reasonable price with various functionality
  • Can be installed with the logo facing user or hidden 
  • Provides solid construction guarantees long term use 

Technical Details

  • Model number- LZVC001SLZ
  • Manufacturer- Foshan Jiachushijia Furniture Co., Ltd.
  • Product dimensions- 23.7 x 19.8 x 10.3 inches
  • Item weight- 26.1 pounds
  • Color- LZSVC001
  • Special features- Quiet
  • Style- Modern
  • Finish- Oil Rubbed
  • Material- Ceramic
  • Shape- Rectangular
  • Installation method- Surface-Mounted
What We Liked
  • Does not make noise
  • There is an option to show or hide the logo
  • Affordable price with numbers of features
  • The shiny pure white color is easy to clean
What We Didn't Like
  • No drain or mounting kit is included with the sink

KOHLER Memoirs Undermount Bathroom Sink

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Kohler bathroom sinks are for those who love symmetry and geometry. The standard-sized drain can accommodate any of the drains of your choice, as it does not include the drain.

The brand name is well known in the kitchen industry. Though it does not come with a warranty, you can make sure about the quality because of its brand name. Kohler never delivers low-quality products. 

The ceramic sink comes with a beautiful shiny finishing glaze that looks great in every bathroom décor and makes your bathroom stylish and classy.

The dimensions of the sink fairly fit in any countertop and also saves your countertop spaces where you can put many other necessary instruments. This product is rust and scratch-resistant.


  • Comes with refined rectangular basin with molded edges
  • It requires wall or counters mount faucet as it comes with no faucet or faucet holes
  • Made of vitreous china for lasting beauty and durability
  • Inside the basin, the product has crisp design lines
  • Easy to clean and wipe down
  • It is very durable and long-lasting

Technical Details

  • Model number- 2339-0
  • Manufacturer- KOHLER
  • Product dimensions- 24.75 x 20.5 x 9.88 inches
  • Item weight- 24.7 pounds
  • Color- White
  • Size- 5″ To 6″
  • Style- No-rimming
  • Finish- White
  • Material- Vitreous china
  • Shape- Rectangular
  • Installation method- Undermount
What We Liked
  • It looks great in every bathroom style
  • Comes with deep vanity
  • The shape of the sink is excellent
  • Made of high-quality materials
What We Didn't Like
  • This sink may come to win larger size

Things You Need To Consider Before Purchasing The Best Undermount Bathroom Sink

Whenever you are going to purchase a product, you should study the product features so that you can get the right one for you.

Before buying the Best Undermount Bathroom Sink, you should consider some basic things that we are discussing below.


Weight plays a vital role while buying the best product. The heavier your sink, the more durable and long-lasting it will be. The heavier sink provides more support and lasts for a long time.


To get eye catchy looks, you need to focus on the material. Lower material products will damage and rust after using a couple of months. Natural stone materials such as quartz or granite can be cumbersome and expensive but they are distinctive.


Usually, bathroom sinks have been traditionally white, and white brings a fresh and clean look in your bathroom. 


The drain of your bathroom sink should be fancier or too plain. If your sink does not have enough drain or perfect drain line then garbage will stick in the sink and over flooding can also happen. 


If you have a tiny bathroom and you are confused about installing a sink, then do not worry to choose any of the sinks of this article of Best Undermount Bathroom Sink.

All the products of this article are perfect for any type of bathroom countertop and design. 

Frequently Asked Questions (FAQ)

What Size Drain Do You Need For Your Sink?

Three common size drain holes are available and they are 1.25″, 1.5″ and 1 5/8 (1.625″). You need to select a drain hole according to the size of your sink.

Do You Need A Mounting Ring?

Most of the glass sinks require a mounting ring because the bottom of the glass sinks are not flat so it will not sit properly without the mounting ring. Mounting rings helps to sit a glass sink in a countertop.