Elongated vs Round Toilets - Which Should I Choose?

Elongated toilets measure roughly 18 inches from the toilet seat mounting holes to the front of the toilet bowl rim. This longer length will require a bit more space than a round model. Standard toilet heights are usually 14 or 16 inches, with chair height toilets ranging from 16 to 19 inches. The rough in measurements, the distance between the wall behind the toilet and the center of the drainpipe or the bolts that hold the toilet to the floor, are either 10, 12 or 14 inches. Compact elongated toilets have the larger shape but can fit in the space of a round toilet. These toilets will require an elongated toilet seat. 

Elongated toilets can come in either one or two-piece units. One-piece units are like the name, a single piece toilet for installation. One-piece units are easy to install and keep clean. Two-piece units have a separate bowl and tank, where the bowl is mounted first and then the tank is installed on the back of the bowl. Flush technology can be gravity fed or a more powerful pressure assisted flush. There is also a dual flush option to save water.

Round toilets measure about 16-1/2 inches from the mounting holes to the front of the toilet bowl rim. This shorter bowl size is great for smaller bathrooms. Like the elongated toilet, the rough in sizes and seat heights are the same. One unique option for a round toilet is a children’s height model. Toilet is designed for children and small people with a toilet height of 10-1/4 inches, making it perfect for potty training or installing at preschools and day cares. 

Round toilets also come in either one or two-piece construction, however the majority is of the two-piece version. Flush technology is either gravity fed, pressure assist or flush valve. Round toilets will need a rounded toilet seat.

The main difference in these toilets is the shape. They both have similar heights, rough in sizes and flush technologies. So what are some of the differences that can go into the choice for your bathroom?

• The larger shape and look of an elongated toilet may make it more preferable to many people, especially larger and taller individuals.
• Elongated toilets can have a more powerful flush system, which may avoid having to “double flush.”
• Elongated toilets require more room than a round toilet, so take this into consideration if space is an issue.
• Round toilets can be installed for potty training, then replaced with an elongated one as your child goes up.
• Elongated toilets may be more expensive to purchase than a round toilet.
• Toilet seats for elongated toilets may be easier to find when looking for a replacement.

For more information and ideas on which toilet is right for your home, read our articles 6 Expert Tips for Buying a New Toilet and our Toilet Buying Guide.

ADA compliant toilets can resemble regular or standard toilets, but there are several characteristics that make them different. These special toilets have requirements for proper height, toe clearance, flush handle position and flush technology. 

Having a taller height is important for ADA toilets to help those that may have trouble sitting or rising on a lower height toilet. ADA height is also known as a comfort height toilet. You also need to consider where the flush handle is so that it is easily reachable. The handle should also be easy to engage without putting a strain on the hands and wrist.