Pros and Cons of a One Piece Toilet

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One piece toilets are sleek, modern, easy to clean, durable, and compact. However, these features contribute to a greater purchase and installation cost, a heavier unit that is difficult to transport and manoeuvre. The one piece design also means the whole unit needs replacement if one part breaks.

One Piece Toilet ProsOne Piece Toilet Cons
Sleeker, more modern lookHigher cost for purchase and installation
Much easier to clean and maintainA lot heavier than two-piece toilets
More compactYou have to replace the entire toilet when breakages occur
Have a greater durability
Pros and Cons of a One Piece Toilet

Pros of a One Piece Toilet

Sleeker, More Modern Appearance

The one-piece toilet, although providing the exact same function as a traditional two-piece toilet, is unique in its appearance. It creates a more stylish look; the cohesion of the tank and bowl makes the toilet look sleek and modern as there are no harsh separation points.

These toilets come in a variety of designs and sizes, all of which are very current to trends today. They are being seen a lot more in modern and newly renovated homes than two-piece toilets are. One probable reason is that they have the ability to elevate even the simplest of bathrooms to a higher level of sophistication.

Have a look at these one-piece toilets to see some examples of the design styles available:

Swiss Madison Well Made Forever SM-1T254 St. Tropez One Piece Toilet, 26.6 x 15 x 31 inches, Glossy White
Swiss Madison Well Made Forever St. Tropez One Piece Toilet
VOVO STYLEMENT TCB-090S Integrated Smart Toilet, Bidet Toilet, One Piece Toilet with Auto Dual Flush, Heated Seat, Warm Water and Dry, Made in Korea
VOVO Smart Bidet Toilet
KOHLER K-3946-0 Adair Comfort Height One-Piece Elongated 1.28 GPF Toilet with Aqua Piston Flush Technology and Left-Hand Trip Lever, White
KOHLER Adair Comfort Height Elongated One Piece Toilet

If you are modernizing your bathroom’s look with a one-piece toilet, you might want to consider switching to a rectangular bathroom sink as well.

Easier to Clean and Maintain

Put away your old toothbrushes because you won’t need the extra effort to clean the outside of this toilet! As the design of the toilet eliminates any gaps, deep edges, and hard-to-reach nooks and crannies, cleaning the outside of your toilet has become a lot easier. The smooth one-piece style allows you to get rid of all the surface dirt with a lot less effort.

You no longer have to bring out the elbow grease to scrub away the dust and dirt that can accumulate in the fine crevices of a toilet, where the tank meets the bowl. The lack of deep lines and separations also reduces the possible growth of bacteria that can become trapped, making this design a lot more hygienic.

More Compact

One-piece toilets are the perfect fit for smaller bathrooms or if you are just trying to maximize the space you have available.

Although these toilets come in a variety of styles and sizes, their molded tank and bowl design usually requires less space (in height and in width) than a two-piece toilet does. They require fewer connections to plumbing, which is another space-saving point.

These toilets are also generally lower to the ground than others, making them more user-friendly and taking up less height in the bathroom, meaning you can add shelves above the toilet for more storage.

Greater Durability

Not only are these toilets easier to install than two pieces, as the one-piece toilet does not have separate parts joined together by various components, but they also tend to last a lot longer. The fewer parts a toilet has, the fewer parts there are to maintain.

There is a reduced need of having to replace connections and joints such as the rubber gasket seal, a common issue with two-piece toilets.

You also have the benefit of peace of mind that your tank won’t leak water during the night, leaving you with puddles to clean up in the morning!

Depending on the brand and with the proper care and usage, this toilet can last your family a lifetime.

one piece toilet pros and cons

Cons of a One Piece Toilet

More Expensive (Purchase and Installation)

One piece toilets might bring you fewer hassles when it comes to cleaning, but you will definitely be paying for it.

Your average one piece toilet can range anywhere from $300 to $1000, with more high-end ones reaching close to the $2000 mark.

This price is without factoring in the cost of delivery—which is higher than normal due to the weight of the toilet—and installation costs (which can be around the $500 mark as they are a lot heavier and thus require more manpower).

These toilets are a lot more complicated to manufacture as they require all the working parts to fit into one space as opposed to two, so their production costs are a lot higher than the two piece toilets.


The one piece toilet may make your bathroom look ultra-modern and sleek, but transporting it from the store to your home is no easy feat.

Most one piece toilets average at a weight of nearly 90 lbs, almost double that of a two piece toilet. The increased weight is attributed to a specific process in the production cycle where the toilet holds the weight of the ceramic tank.

With two piece toilets, the weight is distributed between two separate parts, making it much easier to carry and lift for installation, albeit in two trips. With the one piece, you might have to ask for an extra hand as the weight is concentrated in the singular piece.

If the weight is too much for you, or if the toilet you desire has to be ordered, you can organize to get it shipped to you—but keep in mind that the higher weight brings along a higher transportation and installation cost.

Breakages Mean You Have to Replace the Whole Unit

Although less likely to break than a two piece, you might just decide against having a one piece toilet when you realize the hassle of fixing one if it does break.

Unlike two piece toilets, where you can simply replace the broken tank or bowl, you, unfortunately, will have to pay over the money to replace the entire one piece toilet if something goes wrong. This means you will have to pay for delivery and installation, as well as the unit’s cost, again.

Related article: The Difference Between a Bathroom, Restroom, Washroom, Toilet, and Lavatory


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