Toilet dimensions vary depending on the type and style of toilet. However, in general, toilets typically have a height of 15 to 19 inches and a width of 14 to 17 inches. There are also various measurements to consider when installing a toilet, including rough-in, which is the distance between the center of the drainpipe and the finished wall, and the bowl height, which is the distance from the floor to the rim of the toilet.
- Rough-in: Standard rough-in measurements are 10, 12, and 14 inches, with 12 inches being the most common. It is important to know the rough-in measurement when selecting a toilet to ensure it will fit properly in your bathroom.
- Bowl height: Bowl height is typically between 14 and 16 inches, but some toilets have a taller seat height, known as comfort height or ADA height, which is between 17 and 19 inches. These toilets are designed to be more accessible for people with disabilities or mobility issues.
- Tank size: Toilet tanks can range in size from 1.28 to 1.6 gallons and can affect the amount of water used per flush. Many modern toilets also offer dual-flush options, meaning they have separate buttons for a full flush and a partial flush, which can save water.
- Bowl shape: Toilets also come with different bowl shapes, including round and elongated. Elongated bowls are oval-shaped and can provide more comfort, but they also take up more space than round bowls.
When selecting a toilet, it is important to consider all of these dimensions to ensure the toilet will fit properly in your bathroom and meet your specific needs. Additionally, it is important to hire a licensed plumber for installation to ensure proper placement and functionality.
Toilet Dimensions & Sizes
| Type | Common Sizes | Dimensions |
| One-piece toilet | 27-31 inches in depth and 17-20 inches in width | 17-19 inches from floor to seat |
| Two-piece toilet | 27-30 inches in depth and 19-24 inches in width | 14-16 inches from floor to seat |
| Wall-mounted toilet | 18-28 inches in depth and 13-23 inches in width | 15-19 inches from floor to seat |
| Round toilet | 25-28 inches in depth and 16-17 inches in width | 16-17 inches from floor to seat |
| Elongated toilet | 27-31 inches in depth and 18-19 inches in width | 16-19 inches from floor to seat |
Guide to Toilet: References and Resources
If you want to learn more about toilet dimensions, here are some references you can use to dig deeper:
- Toilet Dimensions Buying Guide from Home Depot: this guide provides an overview of standard toilet dimensions and explains how to measure for a new toilet.
- Toilet Dimensions: Buying Guide from The Spruce: this comprehensive guide covers everything you need to know about toilet dimensions, including details on rough-in measurements, bowl shape, and height.
- Toilet Dimensions: What to Know Before You Buy from Bob Vila: this article provides a helpful overview of standard toilet dimensions and explains key factors to consider when choosing a toilet, such as bathroom size and user needs.
- Toilet Dimensions: The Family Handyman: this guide explains how to measure for a new toilet and provides helpful illustrations to show you what to look for.
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