One-Piece vs. Two-Piece Toilets

Heather Asiyanbi - 7/18/18 8:12 PM

One-piece and two-piece toilets are similar in many ways - they flush the same, they are installed in similar fashions and they use the same amount of water. But when comparing cleanliness, size and durability, one-piece often comes out ahead.



Because a one-piece toilet means the bowl and tank are a single unit, there are fewer gaps or crevasses where dirt and grime can hide. There will inevitably be spots on a two-piece toilet that are hard to reach and wipe down, allowing bacteria and other germs to thrive. One-piece toilets, on the other hand, make cleaning a breeze.

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While two-piece toilets remain the most popular choice for American bathrooms, a one-piece toilet may be the better option because they take up less space, making them perfect for smaller bathrooms.


A single-piece toilet has no joint between the toilet and bowl, so there are fewer exposed pipes and flushing elements. And, since one-piece toilets are better protected from outside elements like excess moisture, they tend to last longer. That said, if a crack does develop in your one-piece, the entire toilet would need to be replaced.


Price is often a major factor when choosing a new toilet. Two-piece toilets are generally less of an investment than one-piece toilets - and cost is often the biggest differentiator. One-piece toilets are more expensive and have a modern feel, but cost disparity really only occurs when comparing high-end models. In the long run, a one-piece toilet may pay off if you can stomach the upfront cost.

Decision Time

Although two-piece toilets are a familiar site in most American bathrooms, one-piece toilets outperform in most respects. If you can afford to spend a little more on your new toilet, the one-piece is number one in our book.

Topics: Toilet- Comparison- Bathroom

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