Rectangular Undermount Bathroom Sinks

For more than two decades, Signature Hardware has provided beautifully crafted products that make a house your home. From the kitchen to the bathroom - and every room in - between your Signature style starts here. At Signature Hardware, we do things the right way. When you find a product that compliments your style, we'll make every step of the process as seamless and worry-free as possible. We stand by our quality, value customer service, and ensure your satisfaction. That's our promise to you.

[This review was collected as part of a promotion.] Love this bathroom vanity sink. It's a great size and great quality. Client is happy!. Mc. Fri Jan 16 2026

Caxton has a simple, streamlined design that's as versatile as it is attractive. This easy-to-clean sink combines the sleek look of an integrated basin with a timeless design that suits both traditional and modern bathroom decors. Caxton creates a sleek transition from the smooth rectangular basin to just about any countertop.

Very satisfied as we put them in our new home. They clean easily.. Sheila. US. Mon May 18 2026

With its unique, oblong shape and clean lines, KOHLER® Ladena evokes casual elegance. This spacious and distinctive rectangular undermount bathroom sink pairs classic style with versatility, and is a great choice to complement both traditional and modern bathrooms.

Love ships sink and shape. Makes keeling it clean so easy. No corners to clean.. Erin. Wed Aug 19 2026

Created with modern simplicity, this lavatory offers a beautifully rimless, rectangle design. Features a generously wide basin, and large backsplash.

Good price for quality brand.. Renee. New York, NY. Sun Mar 15 2026

With its unique curved bottom and clean lines, this evokes casual elegance. This spacious and distinctive sink has a smooth, glazed rim for a polished look and is versatile enough to complement traditional and modern bathrooms.

Worked out great. Easy to mount. We had an issue with a different brand being uneven so it had a huge gap in the corner. This sink was perfectly straight and even on all sides. I didn’t have to fill in the corner with excessive silicone like the previous sink that was a different name brand. I should have started with this sink. That’s what I get for trying to save a few dollars.. Sarah. Castro Valley, CA. Wed Jul 14 2021

This compact rectangular undermount bathroom sink, small narrow under counter ceramic vanity sink for powder room, is crafted with high-temperature fired premium ceramic, designed for under-counter installation to create a seamless minimalist bathroom countertop look. Sized at 17-1/8"L × 12"W, it is perfectly scaled for narrow vanity cabinets, powder rooms and secondary guest bathrooms. The smooth non-porous glossy white glaze resists stains and bacterial buildup, paired with soft rounded inner corners and optimized sloped basin bottom for quick, clog-free drainage. Built-in overflow prevents accidental water spillage, while the undermount profile eliminates hard-to-clean gaps between sink and countertop, streamlining daily bathroom maintenance and matching modern, farmhouse and contemporary vanity decor styles, ideal compact rectangular undermount sink for half bath renovation.

We needed a very specific sized sink and this was the perfect match! Looking forward to seeing the entire vanity design come together.. Alison. Lakewood, CA. Thu Jul 16 2026

Embrace a sophisticated look with KOHLER® Verticyl, featuring vertical sides for a deep, geometric basin. An undermount installation allows this rectangular undermount bathroom sink to seamlessly integrate into your bath or powder room design.

As described ! Careful with the sizing Not large enough beyond washing hands. Linda. Marriottsville, MD. Sun Mar 08 2026

Create a clean and contemporary look in your bathroom with the streamlined undermount bathroom sink design of Elavo Ceramic Bathroom Sinks from Kraus. Made from high-quality vitreous china, these sinks offer the simple and timeless aesthetic of porcelain enamel, with durable construction for everyday use. The high-gloss porcelain glaze with a smooth non-porous finish is stain resistant and easily wipes clean. Undermount bathroom sink installation creates a seamless transition between sink and countertop, with no exposed mounting deck, allowing you to easily wipe water into the sink when cleaning your bathroom sink vanity. An overflow drain helps prevent the sink from overflowing while the primary drain is closed. Standard US drain opening is compatible with most plumbing fittings

Just what we needed for our master bathroom! Great quality. Jill. Lone Oak, TX. Sun Jul 05 2026

The Euric undermount bathroom sink is rectangular and complements traditional or modern decor. Constructed of durable, white-enameled porcelain, this basin's glossy surface is simple to clean and maintain. It features grooves on the bottom directing water towards its center drain and an overflow hole preventing overfilling.

I love these sinks! I was looking for square sinks for our modern style home, but didn't want to deal with puddling water in the corners. This sink looks very sleek and modern without sacrificing function. The only issue I had was with packaging. The sinks were shipped in a box without padding. I ordered 4 and 3 came broken. Wayfair was easy to work with and quickly sent 3 replacements. One was broken out of the replacements, so they sent me one more. Hopefully they will change the packaging!. Anna. Morehead City, NC. Sun Jan 04 2026

Constructed of thick, solid porcelain ceramic, the Krona collection from Ruvati offers undermount bathroom sinks that fit seamlessly into your vanity. For superior strength and long lasting durability, the vitreous porcelain enamel forms a smooth glossy surface that is extremely resistant to scratching, chipping or crazing. The smooth surface of the Krona collection drains water easily and does not stain, so your sink will remain dry and easy to clean. For a classic look that will never go out of style, choose the Krona collection for your bathroom or powder room vanity.

Love the quality and perfect size for my vanity! Thank you. Anonymous. Wed Apr 29 2026

Refresh the powder room or master suite with this lovely sink, perfect for your next DIY bathroom project.

I love it. Anonymous. Fri Jun 26 2026

Embrace a sophisticated look with the Verticyl undermount bathroom sink. This modern sink features vertical sides to create a deep, geometric basin. The undermount installation allows this sink to seamlessly integrate into your bath or powder room. Pair with your choice of beautifully crafted KOHLER faucet collections for a cohesive design.

Needed a smaller sink for a bathroom remodel and this size is perfect. I also like that it’s not as deep as many other sinks.. Ruth. Vicksburg, MS. Sat Aug 22 2026

It was delivered on time. Looked exactly as it should. No issues. Marci Rae. Satellite Beach, FL. Mon Sep 16 2024

Create a clean and contemporary look in your bathroom with the streamlined undermount bathroom sink design of Elavo Ceramic Bathroom Sinks from Kraus. Made from high-quality vitreous china, these sinks offer the simple and timeless aesthetic of porcelain enamel, with durable construction for everyday use. The high-gloss porcelain glaze with a smooth non-porous finish is stain resistant and easily wipes clean. Undermount bathroom sink installation creates a seamless transition between sink and countertop, with no exposed mounting deck, allowing you to easily wipe water into the sink when cleaning your bathroom sink vanity. An overflow drain helps prevent the sink from overflowing while the primary drain is closed. Standard US drain opening is compatible with most plumbing fittings

Love how it turned out. I recommend 100. Y.o.. Salem, VA. Tue Jun 09 2026

Create a clean and contemporary look in your bathroom with the streamlined undermount bathroom sink design of Elavo Ceramic Bathroom Sinks from Kraus. Made from high-quality vitreous china, these sinks offer the simple and timeless aesthetic of porcelain enamel, with durable construction for everyday use. The high-gloss porcelain glaze with a smooth non-porous finish is stain resistant and easily wipes clean. Undermount bathroom sink installation creates a seamless transition between sink and countertop, with no exposed mounting deck, allowing you to easily wipe water into the sink when cleaning your bathroom sink vanity. An overflow drain helps prevent the sink from overflowing while the primary drain is closed. Standard US drain opening is compatible with most plumbing fittings

Beautiful sink, great quality.. Ivanie. Calgary, AB. Sat May 02 2026

These sinks are just what our bath vanity needed. The are rectangles and deeper than the standard sink!. Armando. Palm Beach Gardens, FL. Mon Jun 01 2026

KARAMAG 16 inches Ceramic Rectangle Undermount Bathroom Sink is one of Our Most Luxurious Sinks! The rectangular design without faucet hole is compatible with most wall-mount or countertop-mount faucets. Simple and versatile smalldesign, easily match with any fixtures in the bathrooms. Neat and clean undermount installation make this sink an affordable luxury. This undermount bathroom sink with overflow is made of high quality vitreous china for long term use,Won't chip,crack or craze.An overflow hole can prevent excessive water filling. Undermount installation saves more space on your countertop, meeting your space requirements.

Top quality- cannot wait to get installed and use - love it!! Great price point and shipping was extremely fast. Carla. US. Thu Jul 02 2026

Why Lexicon?The Lexicon LP-V214 Rectangle Bathroom Vanity Sink are constructed from 80% natural quartz, creating an incredibly durable sink surface. Quartz has the smooth feel of stone with superb sound-absorption properties and provides maximum protection against heat, scratches and stains. Lexicon Sinks are backed by a limited lifetime warranty.Sink Features:80% Quartz Composition, Only Diamond is HarderHeat Resistant up to +500°FDurable, Scratch & Stain ResistantNon-Porous, Easy-To-Clean SurfaceDual-Mount Rim for Undermount and Drop-In Installation21" x 14-1/2"Drains and Overflow Kits Sold SeparatelyDiscover Quartz Vanity Bathroom Sink and functionality with the Lexicon Platinum Quartz Vanity Bathroom Sink available in 5 Color LP-V214-W White, LP-V214-K Black, LP-V214-M Mocha, LP-V214-B Beige, LP-V214-C Concrete.

Heavier than expected. Great color. Should be easy to install.. Anonymous. US. Mon Aug 03 2026

KOHLER® Ladena's upswept curves offer a generous 21" rectangular undermount sink and a striking contemporary look, particularly when paired with a countertop that exposes the basin's glazed underside.

We purchased two of the sinks for an Undermount installation in a solid surface countertop. They were easy to install finish is good and we are looking forward to many years of usage. . Ricky. US. Sun Aug 17 2025

Transform your bathroom into a luxurious oasis with our 18" wide white vitreous china rectangular undermount bathroom sink. Offering a seamless blend of style and functionality, this sink is a must-have addition to modern bathrooms. Its clean lines and crisp white finish effortlessly complement any decor, while the undermount design creates a polished, integrated look. Crafted from premium vitreous china, this sink is not only stunning but also built to withstand the test of time. Non-porous surfaces are easy to clean and maintain. Complete with an overflow hole for added convenience, it's the perfect choice for discerning homeowners seeking both beauty and practicality.

Excellent quality for the price. The sinks look high quality and fit perfectly. Definitely a good buy!. Doreen. Clearwater, FL. Sat Aug 01 2026

The Boylan undermount bathroom sink has a rectangular bowl that features rounded corners and walls. Made of durable, white-enameled porcelain, this basin's glossy surface is easy to clean and maintain. A thin overflow hole near the rim catches overrun water, redirecting it to the drain below.

Love the unusual shape to add interest to a simple modern bathroom.. Artist. Mesa, AZ. Fri Aug 14 2026

Ceramic bathroom sinks is crafted from high-quality ceramic materials, resistant to scratches, cracks, and chips, ensuring longevity and minimal maintenance. Available in a variety of styles, colors, and designs, they allow homeowners to select a sink that complements their bathroom décor and personal taste, enabling the creation of unique and personalized bathroom designs.

Great sink, perfect dimensions for a small bathroom counter at 15" wide and 10" deep on the inside. Nice finish and modern square corners too. We first ordered another brand that was 10" deep too but only 13.5" wide. And it was too small but also looked "off" in dimensions. A 3 to 2 ratio for width to depth is aesthetically perfect.. Anonymous. Wed Aug 26 2026

Stainless steel basins are a must-have for any modern kitchen or bathroom. Crafted from high-grade SU304 Stainless Steel, they offer superior durability and resistance to corrosion, rust, and stains. Ideal for a wide range of applications, from food preparation to handwashing, their sleek design complements any interior decor.

Rectangular vitreous ceramic lavatory single-bowl undermount 20" x 15" x 7-1/2"

Cracked within the first year.. Albania. Waxhaw, NC. Fri Nov 28 2025

Inspired by traditional furniture and architectural elements, KOHLER® Memoirs features clean lines and rich detailing. Molded edges lend an elegant touch to this under-the-counter rectangular undermount bathroom sink.

It’s a beautiful sink. I love the look. I have put this into bathrooms now that’s how much I love it and I’ve purchased them both at Wayfair.. Linda. Southlake Tx. Sat Feb 14 2026

Constructed of thick, solid porcelain ceramic, the Krona collection from Ruvati offers undermount bathroom sinks that fit seamlessly into your vanity. For superior strength and long lasting durability, the vitreous porcelain enamel forms a smooth glossy surface that is extremely resistant to scratching, chipping or crazing. The smooth surface of the Krona collection drains water easily and does not stain, so your sink will remain dry and easy to clean. For a classic look that will never go out of style, choose the Krona collection for your bathroom or powder room vanity.

Sink is great. Unfortunately one came totally damaged in pieces but Wayfare replaced it without any questions asked. The replacement came in perfect condition.. Vera. Chagrin Falls, OH. Wed Mar 25 2026

Embrace a sophisticated look with the Verticyl undermount bathroom sink. This modern sink features vertical sides to create a deep, geometric basin. The undermount installation allows this sink to seamlessly integrate into your bath or powder room. Pair with your choice of beautifully crafted KOHLER faucet collections for a cohesive design.

I love this sink. You can always count on Kohler to make a great product. It’s the perfect depth- not too deep- just deep enough. Very easy to wipe down and keep clean.. Tiffany. Omaha, NE. Tue May 19 2026

Introducing the VCS-1115 bathroom sink. This sleek undermount basin by Allora USA, measuring 11-1/4 x 15 inches with a depth of 4-1/4 inches, is a great choice for contemporary bathrooms. Its rectangular design optimizes the available area in compact settings and ensures ample space for daily routines. Crafted from lustrous, easy-to-clean vitreous china, this sink resists staining, ensuring it retains its shine over time. Allora USA's commitment to aesthetics and longevity is evident in its range of bathroom sinks, which are built to withstand the rigors of daily usage. With a diverse array of designs and mounting options, Allora USA offers solutions that cater to every preference, seamlessly blending into your lifestyle.

Sink size is what I needed. Product is more expensive than similar Kohler products.. Anonymous. Mon Dec 04 2023

Sink was perfect for our custom made vanity. Clipped perfect to our countertop. Would recommend.. Alyssa. Aberdeen, NJ. Sat May 21 2022

Exact replacement for my cracked sink. Very satisfied. Al. Libertyville, IL. Sun Dec 26 2021

Inspired by the charm of turn-of-the-century homes, an KOHLER® Artifacts bathroom sink is like a vintage treasure rediscovered and enhanced by the comforts of modern design. The rectangular bathroom sink mounts from underneath the vanity top, resulting in a more contemporary clean and uncluttered look. Pair this Artifacts bathroom sink with other products in the Artifacts collection and create the bathroom space of your dreams.

Beautiful, well made sinks, but larger than we needed. Anonymous. Thu Aug 13 2026

Great sinks. Size is perfect for my larger 75 in span. Installer agreed that sinks were well made and Kraus is a decent brand.. Meryl. High Bridge, NJ. Sat Jun 04 2022

Destin Rectangular Porcelain Undermount Bathroom Sink - White

The sinks are the perfect size and I like the drain being further in the rear of the sink.. Labg. Sun Apr 19 2026

Designed for clean integration and everyday durability, this 16-inch rectangular undermount bathroom sink delivers a sleek, space-efficient solution for modern vanities. Crafted from high-fired porcelain with a smooth glazed surface, it offers excellent resistance to daily wear. The undermount design creates a seamless countertop appearance while supporting easy cleaning, long-term performance, and reliable functionality in residential bathroom settings.

This undermount bathroom sink is crafted with durable solid ceramic, low water absorption, smooth and polished surface, very resistant to scratch and stains, easy to keep clean. The rectangular sink can stand up to chipping and keep as pure white as new even after years of use.

Lydia. Oakville, ON. Thu Mar 12 2026

The Deervalley rectangular undermount bathroom sink provides a refined look for your bathroom decoration. Its spacious rectangular design perfectly combines classic style and versatility, and it also provides three white, bone, and black colors for choice, making it an excellent adapt to complement traditional and modern bathrooms. This undermount bathroom sink with overflow is made from vitreous china, making it sturdy, durable, and effective against stains and germs. An overflow hole can prevent excessive water filling. Undermount installation saves more space on your countertop, meeting your space requirements.

I really like this sink for the price. The logo "deer valley" is printed on sink, but to me, it's not distracting enough to return.. Jen. Scotts Valley, CA. Tue Aug 18 2026

Upgrade your bathroom or bar vanity with our DeerValley white undercounter sink, blending modern elegance with minimalist glamour. Crafted from premium ceramic for durability, its smooth surface is easy to clean. Equipped with an overflow hole and standard 1.75-inch drain opening, it prevents overfilling. Undermount installation ensures a seamless, chic look for any space.

Looks great in our Jack and Jill bathroom with our new countertops. Arrived on time and easy installation.. Sandra. Indio, CA. Sat Oct 04 2025

The TOTO® 20 Inch Rectangular Undermount Bathroom Sink with CEFIONTECT features a modern shallow basin that is ideal for narrow countertops. It features a sleek rimless design and is made with durable vitreous china for long-lasting beauty. This sink is coated with TOTO's CEFIONTECT glaze that prohibits mold and debris from adhering to ceramic surfaces. This technology helps keep your sink cleaner for longer and reduces the number of harsh chemicals used for cleaning. Included: Sink, installation template, and mounting screw set for wood countertops. Purchase separately: Compatible faucet and drain. Mounting assembly THU410 is required for marble/granite type countertop installation and must be purchased separately.

Very beautiful and extremely user friendly. Easy to clean and everything flows easily down the drain.. Dianne. Aurora, CO. Sat May 02 2026

Build a bold bathroom with the Ariaso collection from Ruvati. Stepping away from traditional porcelain, this collection offers modern, stylish sinks that will make your bathroom truly unique. From typical stainless steel to shades of gold and black, these sinks feature an innovative nano-PVD finish that is resistant to wear and abrasion. The Ariaso collection can be useful in both residential and commercial properties. Multiple installation options and arc-shaped bowl adds a beautiful, modern touch to the sink and provides exceptional drainage. To truly transform your bathroom space, experience the Ariaso collection.

[This review was collected as part of a promotion.] I’ve had it a year and it still brings me joy when I walk into my powder room. Elizabeth. Thousand Oaks Ca. Mon May 04 2026

Build a bold bathroom with the Ariaso collection from Ruvati. Stepping away from traditional porcelain, this collection offers modern, stylish sinks that will make your bathroom truly unique. From typical stainless steel to shades of gold and black, these sinks feature an innovative nano-PVD finish that is resistant to wear and abrasion. The Ariaso collection can be useful in both residential and commercial properties. Multiple installation options and arc-shaped bowl adds a beautiful, modern touch to the sink and provides exceptional drainage. To truly transform your bathroom space, experience the Ariaso collection.

I absolutely love the sink I will post a picture as soon as they get the countertop set. Shirley. Tue May 23 2023

Constructed of thick, solid porcelain ceramic, the Krona collection from Ruvati offers undermount bathroom sinks that fit seamlessly into your vanity. For superior strength and long lasting durability, the vitreous porcelain enamel forms a smooth glossy surface that is extremely resistant to scratching, chipping or crazing. The smooth surface of the Krona collection drains water easily and does not stain, so your sink will remain dry and easy to clean. For a classic look that will never go out of style, choose the Krona collection for your bathroom or powder room vanity.

[This review was collected as part of a promotion.] I bought this sink to go into my newly remodeled bathroom and I am so happy that I did! The sink has beautiful finish and looks great!. Chris C. Chesterfield, Michigan. Sun Aug 02 2026

Scala undermount bathroom sink with a sophisticated rectangular body. Made from 100%, super durable and non-porous fireclay. Comes with overflow.

Very nice!! Exactly what I was looking for.. Melinda. Thu May 01 2025

Rectangular Vitreous Ceramic Lavatory Single-Bowl Undermount 21" x 14-1/2" x 8-1/2"

Love it for my farmhouse half bath. Tori. Angie, US. Sun Jul 01 2018

Upgrade your bathroom effortlessly with our Ceramic Rectangular Undermount Bathroom Sink. Crafted for durability and style, its sleek design complements any decor. With easy cleaning and ample space, it's the perfect blend of elegance and functionality for your daily routine.

Bought 2 for a double vanity and they look crisp and clean. Easy installation.. Susanne. Poway, CA. Sat May 09 2026

The vitreous china rectangular undermount bathroom sink with overflow features front overflow, an unglazed rim, and a supplied mounting kit with a template for easy installation.

It hasn't been installed yet as I am waiting for new countertops, but it arrived quickly, well packaged and exactly as pictured. I am very pleased.. Marilyn. Sebastian, FL. Fri Jun 18 2021

This 19.7-inch bathroom undermount ramp sink from Badeloft features a slope-to-drain design. The ramp basin slopes gently toward the drain, so water flows out completely without pooling. Stone resin is non-porous, meaning it won't stain or absorb moisture over time. Includes mounting hardware for undermount installation. Backed by a 10-year residential warranty.

Looks good. Its not installed yet.. Lori. Plymouth, MN. Wed Aug 19 2026

Nantucket Sinks is a beautiful rectangular under-mount earthenware bathroom sink. Glazed in classic glossy white, the finish is durable and easy to maintain. A deep scoop shape helps with drainage.

The sink is exactly as pictured.. Janine. Oxford, MI. Mon Apr 06 2026

limited lifetime warranty Constructed of vitreous china Coordinates with products from the Norris line Console installation - sink sits atop a console base Rear drain location increases available space under the sink Equipped with overflow Mounting hardware included ADA compliant Specifications: Overall Height: 8-1/4" (top to bottom of sink) Overall Length: 21" (left to right of sink) Overall Width: 14-9/16" (front to back of sink) Basin Length: 18-3/4" (left to right of basin) Basin Width: 12-1/4" (front to back of basin) Basin Depth: 6-5/16" (top to bottom of basin) Drain Connection Size: 1-1/2" Number of Faucet Holes: 0 Minimum Cabinet Size: 24"

We have installed these sinks in many of the homes we remodel. They are nice looking, great quality. In addition, they don't have the super deep basins -- they are reasonably priced and look great. Jody29. Phoenix, AZ. Sat Jan 26 2019