One-piece vs. two-piece toilets: What’s Best?


We all know the fundamental part of any bathroom. Whether revamping an old bathroom or building a new one, you have to be particular about the toilet you choose.

There are two leading contenders – one-piece and two-piece toilet sets.

Both these variants are available in different sizes, shapes, and designs to suit your needs. You might find yourself in a dilemma while selecting the toilet that best suits your bathroom. Don’t worry. We are here to get you through.

Here, we will discuss the core differences between the two variants. So without wasting any more time, let’s dig in!

Differences between one-piece vs two-piece toilets

One piece toilets are usually more expensive, and more stylish.

One-piece or two-piece, which should you buy? Which is better? Let’s compare them and find the answers to these questions.

Each variant has its own merits and demerits. You should research and decide what best suits you and your needs.


The most prominent difference between the two is as the names suggest. The one-piece variant is designed so that the tank and bowl are connected as a unit. In contrast, the two-piece variant has a separate tank and bowl. They also come in different designs

Type 1 – The tank and bowl are connected through bolts.

Type 2 – The tank and bowl are connected through pipes, and the tank is hung up on the wall.

Size and weight

One-piece sets are more compact as compared to two-piece ones and hence, cover less space.

However, the one-piece variant is heavy as you have to carry the whole unit. The elements can be uncoupled in the two-piece variant, which halves the total weight and elevates portability.


One-piece designs are more expensive in comparison to two-piece ones.

They look more modern, sleek, and appealing than two-piece sets, which are more traditional.


One-piece sets are relatively easier to clean than two-piece ones. There are no little openings where mold can grow or dirt can accumulate.

Both types are water-efficient. So this is a common plus point.

One-piece toilets – pros and cons

Let’s see the pros and cons of one-piece sets.


1. Spaceefficient

Since the tank and bowl are combined as one unit, these sets tend to take less space.

2. Modern look

Talking about the looks of the one-piece toilet, they improve the overall aesthetics of your bathroom.

3. No assembly

There is no unnecessary bolting to couple the components as there is only one single unit to install.

4. Easy maintenance 

Since it is a single unit, there won’t be any complaint of leakages. It is hygiene-friendly and easy to maintain and clean.


1. Expensive

The designs in this variant are expensive as compared to other variants.

2. Full package replacement

Replacement of the whole unit is required in case of breakage or other faults.

3. Heavyweight and bulky

The unit is heavy, and you have to be careful while installing it.

Two-piece toilets – pros and cons

Let’s see the pros and cons of the two-piece model.


1. Not so expensive

It is cheaper as compared to one-piece designs.

2. Seperate replacement

In this set, the bowl and tank are separate units. If either of them is damaged or does not work properly, then it can be replaced separately.

3. Easy installation

A single person can do the installation, which is quite straightforward.


1. Not so space-efficient

Due to a different bowl and tank, the whole unit takes more space than a single unit.

2. A little challenging to clean

There are small slits in the whole unit when bolted together. Cleaning the dirt and mold from these slits is a little tricky task.

3. Highmaintenance

The tank and bowl have to be bolted together. So the whole unit requires more maintenance than the single-piece unit.


Detailed above are the core differences between the two variants. Both sets have their pros and cons.

The final decision lies in your own hands. You should consider other factors like budget, space, etc.  

Have a good look at the differences and pick the one that suits your needs best.

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