Toilet Room Dimensions

In this article we are going to focus on the keyword toilet room dimensions. The first step in planning a new bathroom or renovating an existing one is deciding on the layout and features to include. One popular bathroom feature you might consider is having a designated toilet room or water closet. A toilet room is a small space that houses the toilet and is separate from the other bathroom fixtures.

When determining what size your toilet room should be, it is important to take into account the dimensions of the toilet and the amount of space needed for comfort and functionality. In this article, we will discuss typical toilet sizes and what you should consider when determining the amount of space you will need to build your toilet room. We conducted research on the topic.

Toilet Room Dimensions

Toilet Room

The standard dimensions of a toilet are typically 27 to 30 inches in depth, 20 inches in width, and 21 to 31 inches in back height. The International Residential Code (IRC) requires a toilet room to have a minimum dimension of 30 inches by 60 inches. The National Kitchen and Bath Association recommends a minimum of 36 inches by 66 inches for increased comfort and accessibility. If you are looking for the most comfort possible, more luxurious designs go up to 48 inches by 72 inches.

Now that you understand the basics, let’s discuss in more detail what you should consider when designing your toilet room. The benefits of a toilet room are that it is a private space for people to use the restroom. Some people may choose to add features such as a sink to the room, but it is not necessary. Keep reading to find out more about these answers.

Why Add A Toilet Room?

According to the National Association of Home Builders (NAHB), toilet rooms are one of the top five most wanted bathroom features, especially in master bathrooms. Some benefits that make toilet rooms so appealing include privacy, space, and convenience.

  • Privacy: Having a separate toilet from the other bathroom features allows the space to be shared with other family members at the same time without sacrificing privacy.
  • Design: A toilet room can help to draw attention to your bathroom’s more inviting features, such as the vanity and shower, adding to the aesthetic of the bathroom’s design.
  • Cleanliness: If you keep the toilet in a different space than bathroom linens and toiletries, you will reduce the spread of germs to the items in your bathroom that are most susceptible.

How Much Space Do You Need For A Toilet?

How Much Space Do You Need For A Toilet

It is important to understand how much space is needed for a toilet when determining the size of your toilet room. The National Kitchen and Bath Association recommends that the distance from the center of the toilet to each sidewall be at least 18 inches. The toilet should have a clearance of at least 30 inches between the front of the fixture and the nearest fixture or wall behind it. The distance between the center of the toilet and the center of the nearest fixture is recommended to be at least 36 inches. 

How To Measure A Toilet?

How To Measure A Toilet

To determine the size of your toilet room, you will need to know the size of your toilet. Measure your toilet twice to ensure accuracy. Also, make sure you measure the width and length of the toilet to make sure it will fit in your space. Toilet Dimensions To Measure:

  • Seat Height – Measure from the floor to the top of the toilet seat.
  • Back Height – Measure from the floor to the top of the toilet tank.
  • Width – Measure from the right edge to the left edge of the toilet tank or seat, whichever is widest.
  • Depth – Measure from the front of the toilet rim to the back of the toilet.
  • Rough-In – Measure from the center of the closet bolts or drainpipe to the wall (not the baseboard).

How Many Toilet Sizes Are There?

The size of your toilet room also depends on the type of toilet you choose. There are many different types of toilets, each with their own unique design. In this article, we will discuss some of the more space-consuming toilet designs, in order to help you plan your toilet room accordingly. 

Bowl Shape

Bowl Shape

Some modern toilets have an elongated bowl, which provides more comfort than a traditional toilet bowl. Elongated bowls are typically two inches longer in the front than other bowls and may not fit in narrow spaces.

Toilet Style

There are four main types of toilets: closed coupled, back to wall, wall hung, and low level. Each type has its own unique features and design. Different spacing needs are required for each of these four styles. 

Close Coupled Toilets

Close Coupled Toilets

The most common toilet type is the closed coupled toilet. The cistern or toilet tank is attached to the toilet bowl in a one or two-piece unit. The cistern or toilet tank is a part of the toilet bowl. These toilets are designed for small spaces and are taller than most, but require more back wall space. 

Back To Wall Toilets

Back To Wall Toilets

Back to wall toilets are similar to close coupled toilets in that they are free-standing and space-saving. However, the cistern is hidden within the wall or even furniture, creating a more contemporary design.

Wall Hung Toilets

Wall Hung Toilets

Wall-hung toilets are similar to back-to-wall toilets, in that the cistern is concealed within the wall. However, the unit is mounted to the wall and hangs off the floor. This design is popular because it is easy to clean and has a modern style. 

How Do I Know My Toilet Seat Size?

Now that we have discussed some of the different shapes and styles of toilets, you may be wondering what your toilet seat size is. We will explain the three points you should measure on a seat to ensure a comfortable fit. First to find the bolts that attach the toilet seat to the bowl, measure the distance between them. The standard measurement for this product is 5.5 inches.

Next, measure the width of the toilet bowl at its widest point from the inside of the bowl. Lastly, measure the bowl’s length from the back of the bowl to the front. Round bowls are typically 16.5 inches, while elongated bowls are typically 18 to 18.5 inches.Some contemporary toilet designs have specialized toilet seat shapes, so it is recommended that you check compatibility with your manufacturer to ensure your seat fits.

How Much Space Between Toilet And Sink?

The space needed between the toilet and sink will largely depend on the layout of your toilet room and the location of your sink. If you are placing the sink adjacent to the toilet, you will need a minimum of 18 inches of open space from the toilet center to the sink edge. The sink should be placed at least 30 inches from the front edge of the toilet if it is in front of it.


Here, I have come to the end of the article on topic toilet room dimensions . I tried my level best to include all the necessary points that are required related to the article. I do hope my article would be interesting and may be ever knowledgeable.