One Piece vs. Two Piece Toilet: What’s The Difference?

Before you buy your next toilet, read this and see which option is best for your bathroom.

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If you’ve never shopped for a toilet before, you might be surprised to learn there are different types. Here we’ll discuss the differences between the two most common types of toilets — one piece and two piece — and help you decide which to choose.

What are the Differences?

It’s simple: A two piece toilet has a separate tank and bowl, while a one piece is all connected. But there are other differences, too. One piece toilets are typically heavier and easier to clean, and there’s less space for bacteria to grow. Because two piece toilets feature a detachable tank, they’re more customizable for preferred styles and heights.

Both styles can include bells and whistles like bidet attachments or low-flow energy saving. Also, either can be shaped in the standard styles: elongated, which is slightly longer, and round.

Because one piece toilets are heavier, they can be more expensive to ship if you order one online.

Pros and Cons

One piece toilets


  • More durable;
  • Easier to clean;
  • Higher end look.


  • More expensive;
  • Heavier.

Two piece toilets


  • Less expensive;
  • More options for look/height.


  • Less durable (more likely to break);
  • More complex installation;
  • Greater chance of a leak;
  • Lower end look.

Cost Difference and Options

Most one piece toilets sold online at The Home Depot range between $250 and $600. The top-selling one piece toilet, the Santa Rosa comfort height compact toilet by Kohler, costs $360.

Conversely, most two piece toilets at The Home Depot run between $100 and $400. The Home Depot’s top selling two piece toilet, the champion tall height high-efficiency toilet by American Standard, costs about $250.

Depending on your preference, you can easily exceed the price range for both toilet types. The most expensive one piece toilet The Home Depot sells is this honed black Numi dual flush elongated toilet, which costs $9,750. That’s right, nearly ten grand for a toilet. The most expensive two piece toilet at The Home Depot runs $3,591.

You might also consider replacing your the lid of your new toilet with a bidet attachment. These are considered a more hygienic option than toilet paper.

Alex Shoemaker
Alex is an avid DIYer but had little experience before purchasing his first home in 2019. A Family Handyman subscription was one of his first purchases after becoming a homeowner, and he's been hooked ever since. When he’s not working, he can be found fixing up his 1940s Florida home or relaxing on the beach with his family.