best one piece toilets for small bathrooms in 2021

Share This Article

Looking for a new toilet for your home? You are in the right place. The process of shopping for a new toilet can be intense, and with the internet brimming with all kinds of options, it’s easy to find yourself overwhelmed and end up with the wrong purchase.

Fortunately, we can help you avoid that through our extensive experience in toiletry and bathroom accessories. In this guide, we provide detailed reviews of the best one piece toilets for small bathrooms as well as other pertinent information you need when shopping for a new toilet.

Related Reading: One Piece Vs Two Piece Toilet: Which Is The Best Option?

Top 10 best one piece toilets for small bathrooms

A one-piece toilet might be your ideal choice when looking for a compact toilet that complements your small-sized bathroom. Considering that the market is brimming with different types of one-piece toilet designs, skimming through the myriad of options to get the right one for your space can be tedious. To give you a head start, here’s a rundown of some of the best one piece toilets that are ideal for small bathrooms.

Quick-Comparison

BrandProduct NameEditor's PickPriceRating
GALBA Small ToiletBest Overall$$4.5
American Standard Champion-4Best Runners-Up$$4.2
Saniflo 023 SANICOMPACT 48 One-Piece ToiletBest For Space Saving$$$4.2
WoodBridge T-0001Best for Dual Flashing$4.6
Dometic 300 Series Standard Height Toilet Best Budget$4.0
*Ratings courtesy of Amazon at the time of publication and can change!

#1: Best Overall: GALBA Small Toilet

The GALBA Small Toilet is another great option for those looking for a really small bathroom. This space-saving one-piece toilet measures 24.5 x 14 x 27 inches and features a Dual Siphonic Flush for powerful silent flushes while minimizing water usage. The toilet comes with a higher quality soft closing lid and sturdy toilet seat constructed from hard plastic. The toilet is small, which ensures easy cleaning as there are fewer surfaces to clean. The glazed surface also makes cleaning less of a hassle. The glazed surface also helps the toilet retain its color and prevents scratching and rust.

What we like
  • Comfortable – the high-quality lid and seat make the toilet comfortable to sit on even for longer periods.
  • Durable – the toilet is made from high-quality materials and is built to last.
  • The surface of the toilet is glazed to prevent scratches and rust.
  • The compact elongated design makes it an ideal choice for small bathrooms.
  • A powerful flush mechanism that minimizes water usage.
What we don’t like
  • May be too small for larger people

#2: Best Runners-Up: American Standard Champion-4

The American Standard Champion-4 is one of the best one-piece toilets in the market owing to its durability. The toilet comes in a sleek design with vitreous china construction. It features a dual flush mechanism and a siphon jet designed to flush out heavier waste than your typical one-piece toilet. The flushing mechanism releases water three times faster than the average toilet making it possible to flush out even the most stubborn of solid waste. The toilet comes in an EverClean design which prevents the growth of odor-causing bacteria, mold, and germs. The American Standard Champion-4 also comes with an instruction manual and some plumbing tools for easy DIY installation.

What we like
  • Longer warranty of 10 years
  • Easy installation – It comes with an instruction manual and some plumbing tools for easy DIY installation.
  • Powerful flushing mechanism, making it easier to flush out heavier waste.
What we don’t like
  • The seat is a bit narrow and can be uncomfortable for some users.
  • Some difficulty closing the lid

#3: Best for Space Saving: Saniflo 023 SANICOMPACT 48 One-piece Toilet

The Saniflo 023 one-piece toilet comes in a self-contained design that makes the toilet ideal for small spaces. If you are in the market for a compact one-piece toilet for a small bathroom, you can’t go wrong with this toilet. The toilet features an inbuilt electric flushing mechanism, so you don’t need an external water tank for this toilet. The flushing mechanism is timed to allow the use of just one gallon of water per flush. This not only ensures that the toilet is always clean and odorless, but it also helps you save a lot of water and reduce your water bill significantly. Located at the back of the toilet, the discharge elbow easily rotates to allow for any type of installation.

What we like
  • Easy installation – All you need is the installation manual and a hand wrench.
  • Ideal for confined spaces.
  • Saves water as the flushing mechanism is timed to allow the use of just one gallon of water per flush.
What we don’t like
  • The flushing mechanism is not as strong as most users would prefer.

#4: Best for Dual Flashing Options: WoodBridge T-0001

The WoodBridge T-0001 one-piece toilet is one of the best rated toilets in this category. The toilet features a dual flush mechanism as well as a siphon jet. This contemporary one-piece design made of ceramic gives you the option between light and heavy flushes which you can adjust depending on your needs. The WoodBridge T-0001 is one of the most efficient toilets on our list, using a minimum of 1.28 gallons of water per flush. This toilet can help you save a lot of water and bring down your water bill significantly. The toilet’s sleek design makes it easy to clean. The installation is easy too, so you may not need professional help if you’re an avid DIYer.

What we like
  • Easy installation as it comes with t-bolts, closing seats, and a wax ring in the packaging
  • Dual flush mechanism and siphon jet for powerful flushes that don’t use a lot of water.
  • Easy to clean as it comes in a stylish design with high-end appeal
What we don’t like
  • Some users had some trouble finding replacement parts when the toilet breaks
  • The instruction manual could be a little more detailed.

#5: Best Budget: Dometic 300 Series Standard Height Toilet   

If you love affordable residential-style one-piece toilets, you will find the Dometic 300 Series Standard Height Toilet perfect. The toilet comes in a sturdy, high-quality porcelain build that will last a lot longer than plastic builds common in low-end products. The toilet also features a strong pedal flush system with an extremely strong flush that cleans the entire bowl. The toilet comes in an all-white color and, as the name suggests, a standard height of around 18 inches. This product is highly portable and easy to install. It takes less than half an hour to completely and effectively install the entire toilet.

What we like
  • Safe and easy to install.
  • Highly portable and comes with all the tools you need for a DIY installation
  • Powerful flushing with triple jet action that removes waste completely
  • An efficient foot pedal operation with adjustable water levels
  • Easy to use
What we don’t like
  • Some users complained that the seat resting on the bowl makes it noisy every time someone sits down.

#6: Best for Sleek Design: WOODBRIDGE T-0019 Dual Flush Elongated One-Piece Toilet

The second WOODBRIDGE product on our list does not disappoint. The WOODBRIDGE T-0019 Elongated One-Piece Toilet features a luxurious modern design with a clean, sleek look, making it compliment with different styles such as modern, craftsman, and traditional styles. The manufacturer employs elegant craftsmanship to deliver a product of great styling and functionality. The toilet is made from high-quality materials and features a siphon flushing mechanism for silent, powerful flushes that minimize water usage. It comes with a quick-release Soft Closing seat that you easily remove or tighten after years of use. It also comes with a special hand wrench tool for easy installation in confined spaces.

What we like
  • Safe and easy to install as it comes with a special hand wrench tool and a detailed installation manual.
  • The comfortable height of the toilet makes it easier for sitting down and standing up for most adult users.
  • Powerful dual flush mechanism (fully glazed for silent flushes)
  • Consumes just 1.28 gallons of water per flush, helping you save water.
What we don’t like
  • Some users experienced difficulties with DIY installations.
  • It’s relatively heavy and requires two people to install.

#7: Best for Powerful Flush: TOTO CT418F Aquia

As one of the most affordable options in the market, TOTO CT418F Aquia is a tankless toilet made of vitreous china with Toto’s SanaGloss ceramic glaze for protection against mold growth. The ceramic glaze also makes the toilet easier to clean and doesn’t require a lot of water to clean. When it comes to flushing, this one-piece toilet only consumes 1.6 gallons of water per flush. Since the toilet is tankless, it has to be connected to the in-wall tank system, which can only be done during renovation or when you are still building the house. Additionally, you have to purchase the seat separately since this toilet is sold without one.

What we like
  • Powerful flushing system that doesn’t consume a lot of water.
  • SanaGloss ceramic glaze makes the toilet easy to clean and prevents the growth of germs and bacteria.
  • Affordable – it is the best budget option in the market.
What we don’t like
  • You need professional help to install this toilet when you are still building the house or during renovations.
  • The toilet is sold without a toilet seat

#8: Best for Comfort: KOHLER 3810-0 Santa Rosa Comfort Height One-Piece Toilet

The KOHLER 3810-0 Santa Rosa Comfort Height One-Piece Toilet features a simple yet stylish design with an integrated tank and bowl. Performance-wise, the toilet comes with a powerful flushing mechanism that uses up to 1.28 gallons of water per flush and a canister flush valve. The canister flush valve is highly efficient when it comes to clearing clogs fast while still using less water compared to other products on our list. The toilet design features an elongated bowl for extra comfort and a seat height that allows users to sit and stand easily. The compact design makes the toilet a good choice for bathrooms with limited space.

What we like
  • Stylish, visually appealing design that will definitely improve the appearance of your bathroom space.
  • Low water consumption.
  • High-performance flushing mechanism that can help you save up to 16,500 gallons of water per year.
  • Comfortable height makes it comfy for people of all sizes – it can be used by the elderly and physically challenged persons.
What we don’t like
  • The Santa Rosa can a bit noisy during flushing and refill.
  • It doesn’t come with a soft close lid, so you have to buy one separately.

#9: Best for Budget: TOTO CT418F Aquia

As one of the most affordable options in the market, TOTO CT418F Aquia is a tankless toilet made of vitreous china with Toto’s SanaGloss ceramic glaze for protection against mold growth. The ceramic glaze also makes the toilet easier to clean and doesn’t require a lot of water to clean. When it comes to flushing, this one-piece toilet only consumes 1.6 gallons of water per flush. Since the toilet is tankless, it has to be connected to the in-wall tank system, which can only be done during renovation or when you are still building the house. Additionally, you have to purchase the seat separately since this toilet is sold without one.

What we like
  • Powerful flushing system that doesn’t consume a lot of water.
  • SanaGloss ceramic glaze makes the toilet easy to clean and prevents the growth of germs and bacteria.
  • Affordable – it is the best budget option in the market.
What we don’t like
  • You need professional help to install this toilet when you are still building the house or during renovations.
  • The toilet is sold without a toilet seat

#10: Best for Universal Height: Toto MS604114CEFG#01 UltraMax II

The Toto MS604114CEFG#01 UltraMax II is one of the most impressive one-piece toilets in the market. The design is compact and futuristic, featuring a double cyclone flushing system (1.28 gallons per flush) for quiet but powerful flushing and SoftClose seat to prevent the toilet lid and the seat from slamming. This single-construction, high profile unit with elongated bowl comes with a universal height of 17.25 inches and a seat that’s comfortable for users of all sizes. To ensure that there is no loss of shine and color over time, the toilet comes in a high-gloss finish that requires less cleaning and use of chemical products.

What we like
  • Universal height of 17.25 inches, which means that most people will find it comfortable to use.
  • Easy to clean as it features seamless construction and high-gloss finish
  • Eco-friendly – combines a high-powered double cyclone flushing technology with low water usage, making it eco-friendly
What we don’t like
  • May not be a good option for households with low water pressure.

How to Choose the best one piece toilet for small bathrooms

Conventional two-piece toilets are fast waning in popularity and one-piece toilet models are taking over. These units come in modern and sleek designs and are a welcome addition to any modern home. If you are looking for a toilet that will supplement your modern or minimalist bathroom, a one-piece toilet may be your ideal choice.

Having said that, you have to make sure that you make the correct purchase. So, here are some important factors to consider when shopping for a one-piece toilet for your home:

1-      Size & Height

One-piece toilets come in a variety of shapes and sizes. You should also consider the height of the toilet. Look for a height that all the members of your household will be able to get on and off easily. We recommend a height of about 19 inches, plus or minus 2 inches. Additionally, buy a toilet that measures up to the current toilet rough-in measurements, that’s the distance from the center of the flange to the wall.

2-      Water-Saving Features

In most American households, 30 percent of water consumption is in the toilet. That’s a lot of water! But more water equals a cleaner toilet, right? Not quite. There’s a reason why the government has a recommended 1.6 gallons per flush, and that’s to conserve water and minimize wastage. Toilet flushing systems are designed to be efficient. So, when shopping for a one-piece toilet, always look for the WaterSense label. One-piece toilets with efficient flushing systems bear the label.

3-      Flushing Mechanism

The flushing ability of one-piece toilets varies greatly across different models and brands. The power or ability to clean everything in the toilet in a single flush is determined by the type of flushing system in the toilet. There are four main types of flushing systems used in one-piece toilets. These are:

  • Double Cyclone Flush. This is one of the most efficient flush systems at the moment. Toilets with double cyclone flush use a small amount of water for each flush but produce a powerful flush. This flush system minimizes water while leaving your toilet clean like you would expect from a normal flush without having to use your toilet plunger every now and then.
  • Dual Flush. Dual flush systems give you the option of a full or a partial flush to save water. With a dual flush toilet, you can save up to 25 percent of water by choosing a partial flush for liquid waste and a full flush for solid waste. Note that the low water use in a partial flush doesn’t compromise the power.
  • Pressure Assisted Flush. Pressure assisted flush system uses pressurized air and water from a separate tank to clean out the waste in the toilet. The pressure forces the water in the tank into the toilet bowl and flushes out the waste. Just like upflush toilets, one-piece toilets using pressure-assisted flush are noisy and often get clogged.
  • Gravity Flush. This is the most basic flush system in use today. This system relies on the force of gravity to clean out waste in the toilet bowl. This simple yet effective mechanism is one of the oldest flushing systems and is commonly used in compost toilets. It’s quiet, powerful, and very easy to maintain.

Note that gravity flush and pressure-assisted flush systems are the most common types of flush mechanisms. The latter tends to use air to force water down when flushing while the former relies on water fed from the top of the toilet. Most one-piece toilets use either of the two mechanisms. Other types of flushing mechanisms, such as dual flush and double cyclone flush, are just derivatives of the two.

4-      Construction Materials and Build Quality

The vast majority of one-piece toilets in the market are made from materials such as ceramic or vitreous china. Different types of finishes may be added to add antibacterial properties or increase resistance as well as durability. A good quality toilet should typically last for 50 years or even more.

Therefore, the materials used in the toilet’s construction will determine the durability, ease of cleaning, maintenance, eco-friendly disposal, etc.

The most common surface finishes are American Standard’s EverClean surface finish and Toto’s SanaGloss surface finish. These special coatings create a very smooth surface that dirt and other materials can’t easily attach themselves to.

This means higher resistance to staining in the bowl and more effective cleaning with the flush. However, it’s imperative that you use mild cleaning agents to avoid scratching and damaging the surface glaze.

5-      Maintenance

Maintenance refers to cleaning and repair. Your one-piece toilet of choice should be easy to clean and resistant to scratches and stains. The toilet should also be easy to repair if need be. You should be able to do minor repairs on your own, and most importantly, the spare parts you need to do the repairs should be readily available.

6-      Comfort

A toilet should be comfortable for all users in your home. The size of the toilet as well as the sitting style will affect your comfort when using the toilet. Take into account the height of the toilet as well as the shape of the seat and the materials used. The amount of space in your bathroom also factors in. Bumping your knees on walls or other items in the bathroom is definitely a less comfortable bathroom experience.

7-      Elongated or Round Bowl?

One-piece toilets come in both round and elongated bowls. So, which is the best option? The two come with a unique set of advantages and disadvantages. Elongated bowls, for instance, provide additional support for the legs and tend to be more comfortable for small people. Large people, however, feel more comfortable sitting on round bowls as they provide wider support for the butts, but they often take up more room and may not be ideal for confined spaces.

Consider your current space when choosing between elongated or round bowl as it may affect your space allowances. However, the choice between elongated or round bowl is, to a large extent, a matter of taste depending on how comfortable you feel sitting on the bowl. Men typically prefer elongated bowls for obvious reasons!

8-      Is the Toilet Compatible with Your Bathroom?

Take into account the style, décor, and overall design in your bathroom when shopping for a one-piece toilet. The toilet must complement the overall look and design of other fixtures in the bathroom, such as bathroom vanities, cabinets, floor tiles, and walls. Whether it’s classical or contemporary, look at the color and design of your bathroom and make sure that the toilet blends into the surroundings.

9-      Budget Considerations

Last but not least, how much are you willing to spend on the toilet? The cost implication should always be taken into account when shopping for the best one-piece toilet. One-piece toilets can be expensive, but you should think of it as an investment that will last for decades. Look at the price against features and build quality. It’d be prudent to spend a few extra dollars on a high-quality one-piece toilet than to save on a low-end toilet that won’t last more than a few years.

10-  Shop Around

Just like everything else, it pays to shop around when buying a new toilet.  Compare features offered by the different models and brands we’ve reviewed here to get the best one-piece toilet for your home. That’s the only way you will be able to find a toilet that meets your needs and preferences.

Common Toilet Problems to Watch Out For

There are several common toilet problems to watch out for in your new one-piece toilet. These include phantom flushes, dripping, an overflowing toilet, and a toilet that’s constantly running. Phantom flushes occur when a toilet seems to randomly flush itself. This problem is caused by a broken valve and can be easily fixed by simply replacing the valve.

Some toilets may also have imperfectly finished surfaces, causing poop to stick on the toilet bowl even after flushing the toilet. If the warranty is still valid, consider returning such toilets for replacement.

A toilet that constantly runs is another problem that can be solved with an easy DIY fix. Usually, this problem is caused by a flapper valve that is not sealing itself properly. To fix it, find out what is causing the valve to stay open and remove it.

Dripping from the toilet tank could just be condensation or a cracked tank. When it comes to overflowing, your toilet is probably blocked (filling and not draining). Use a toilet plunger to remove the blockage and stop the overflow.

Best One-Piece Toilet Brands

Toto Toilets

Toto’s innovations are driven by a desire to improve everyone’s quality of life. Toto toilets, including the Toto MS604114CEFG#01 UltraMax II, are designed to make your life easier. This toilet efficient and easy to clean. It flushes powerfully, while effectively minimizing water usage – a perfect fit for a modern or classic bathroom.

American Standard

 American Standard boasts of an unmatched level of quality and innovation which can be clearly seen in their products, including the American Standard Champion-4 one-piece toilet. With 10 years limited warranty, this elegant, virtually clog-free toilet is a great long-term purchase that’s well worth your money.

KOHLER

Based in Wisconsin, United States, KOHLER prides itself in providing exceptional products and services through design, craftsmanship, and innovation. The KOHLER 3810-0 Santa Rosa Comfort Height One-Piece Toilet lives up to the name. It’s very comfortable to sit in and finish your business and features a powerful but efficient flushing system.

FAQs about one piece toilets

What’s the difference between one-piece and two-piece toilets?

One-piece toilets come with an integrated bowl and tank while two-piece toilets come with the bowl and tank as separate components. One-piece models eliminate the gap between the bowl and the tank that often gets dirty. Two-piece toilets are also known as coupled toilets and are very common in residential homes.

What is the most comfortable height for a one-piece toilet?

The most comfortable height for a toilet varies from one person to the next. The size of the individual is mostly the determining factor. Children and smaller persons would be comfortable with a toilet height of 15 inches. On the other hand, taller persons and the elderly would benefit from a toilet height of 17-19 inches.

Can I install a one-piece toilet by myself?

In most cases, yes. Most of the one-piece toilets in the market are pretty easy to install. You don’t need professional help to install one. Most manufacturers actually include a DIY installation kit as well as the necessary hardware tools in the packaging. However, if you are having trouble understanding the installation manual, call a professional to avoid voiding the warranty.

Do one-piece toilets save water?

Yes, one-piece toilets save water. Compared to other types of toilets in the market, one-piece toilets use less water. Manufacturers incorporate technologies such as dual flush that allow one-piece toilets to flush powerfully and still use less water. That way, they don’t compromise hygiene to save water.

What is the right type of toilet for my bathroom?

There are several factors to consider when shopping for a toilet for your bathroom. The size of your bathroom, for instance, plays a huge role when it comes to choosing the right toilet. You don’t want to buy a toilet only to realize that it’s a little too big for your bathroom and vice versa.

Final Verdict

So, that brings us to the end of our review of the best one piece toilets for small bathrooms in the market today. We focused on the top-rated one-piece toilets at the moment and we hope this guide helped you find the ideal choice for your home.  Our top pick is the GALBA Small Toilet due to its wide range of features, functionality, ease of cleaning, durability, and visual appeal. However, any product on this list will certainly be well worth your money. Your final choice should ultimately be determined by your personal needs and preferences.


Leave a Comment