Skip to Content

How do I know if a new toilet will fit?

When selecting a new toilet, you want to make sure it will fit in the space allotted, as well as the existing plumbing connections. Here are some steps to help you determine if your toilet will fit:

1. Measure the distance from the wall behind the toilet to the center of the closet bolts. This is known as the ‘rough-in’ and is usually 12 inches for a standard size toilet.

2. Measure the distance from the finished wall (including any tile) to the center of the closet bolts. This measurement is important because if the distance is too long, the new toilet won’t fit in the space provided.

3. Measure the distance between the closet bolts to ensure that the toilet matches the distance to the wall. This should be a measurement of between 9 and 14 inches.

4. Determine the drain location so that you know where to ensure the toilet has the proper alignment. The drain pipe should be centered within the bowl of the toilet.

5. Measure the height of your current toilet from the floor to the top of the seat, including any seat height adjustment mechanism. Standard toilet heights range from 15-17 inches.

6. Finally, make sure that the measure between the toilet flange and the wall is less than 1/2 inch. If the measurement is more than 1/2 inch, you’ll need to make adjustments to the floor.

By following these steps you can make sure the new toilet will fit where you want it to and be sure that it is compatible with your existing plumbing.

Do all toilets fit the same?

No, toilets do not fit the same as there are a variety of sizes, shapes, and designs available on the market. For instance, the American Standard Cadet Pro elongated toilet is designed differently from the American Standard Champion 4.

Additionally, toilets come in various sizes such as 15” rough-in, 12” rough-in, 10” rough-in, and even 8” rough-in. The rough-in indicates the distance of the wall’s waste pipe to the mounting flange of a toilet.

In addition to different sizes, toilets also come in various shapes, such as oval, round, and elongated. Furthermore, extra features also provide variation among toilets, such as silent closing seats, and heaters.

These features add to the variation among toilets. Therefore, it is essential to consider all of these factors to ensure that the right toilet is selected for a particular installation.

How do I choose the right size toilet?

Choosing the right size toilet for your bathroom is important for a variety of reasons; it impacts everything from the aesthetic of the room to the functionality of the toilet. Here are a few factors you should take into consideration when selecting a toilet size:

– Space: Measure the space in your bathroom where the toilet will be installed. This will give you an idea of the size and shape you should look for.

– Shape: The shape of the toilet bowl can greatly affect the size, as well. Round toilets typically have the smallest footprint and can fit in tight spaces. Elongated bowls are slightly longer and may require more space, but are generally more comfortable.

– Seating Height: Toilet seat heights can range from 14 inches to 19 inches. Higher-height toilets are usually more comfortable since they are closer to a regular chair height. Shorter toilets can be a good option for smaller bathrooms.

– Styling: The style of the toilet should match the bathroom design. Consider the colors, finishes, and materials to make sure they coordinate with other elements in the room.

Finally, it’s important to choose a toilet that meets your needs. Test the flush power and check for design details such as a slow-close toilet seat. It’s also a good idea to research reviews to ensure that you are selecting a quality product.

With these considerations in mind, you can find the perfect size toilet for your bathroom.

How do you measure rough-in for a toilet replacement?

Measuring rough-in for a toilet replacement involves measuring the distance from the wall behind the toilet to the center of the drainpipe that extends down from the toilet. This measurement is known as the ‘rough-in.

’ To measure the rough-in for a toilet replacement, place a measuring tape at the center of the drainpipe and measure to the wall behind the toilet. Measure from the center of the pipe vertically straight to the wall; do not measure at an angle.

The rough-in of the toilet may vary in size, but the industry standard is 12-inches. It is important to measure the rough-in before purchasing a new toilet in order to ensure that the old and new toilets have compatible drainpipe configurations.

Once the rough-in is measured, use the exact same measurements when purchasing a new toilet to ensure that it is compatible and fits correctly.

What does 12-inch rough-in mean when installing a toilet?

When installing a toilet, 12-inch rough-in refers to the distance from the wall behind the toilet to the center of the hold-down bolts that secure the toilet to the floor. In other words, it’s the “rough measurement” needed to determine the right toilet size.

Most homes are built with either 10- or 12-inch rough-ins, though other sizes may also be found. The rough-in measurement is an important factor in selecting the right toilet, because toilets come in a variety of sizes and shapes.

If a toilet with the wrong measurements is installed, it could prevent the toilet from lining up properly with the wall and the floor, and it can cause problems with flushing and draining. Additionally, a toilet with the wrong rough-in measurement will almost certainly not fit in the space provided.

For all of these reasons, it’s important to identify the rough-in measurement before beginning any toilet installation.

Can you replace a 10 inch rough-in toilet with a 12-inch rough-in toilet?

Yes, you can replace a 10 inch rough-in toilet with a 12-inch rough-in toilet. In most cases, it is simply a matter of ensuring the bowl flange of the new toilet is aligned correctly and securely attached to the floor.

In some cases a few additional steps are required, such as cutting the waste line and/or modifying the existing flange. In either case, it is important to ensure the new toilet is compatible with your existing plumbing fixtures, as some toilets require different connectors or different mounting holes than others.

Additionally, it is important to measure accurately to ensure the new toilet will fit in the space available in the bathroom. A qualified professional plumber should be consulted before undertaking a toilet replacement to ensure the project is completed safely and properly.

How do I know if I have a 2 inch or 3 inch toilet?

To determine whether your toilet is 2 inches or 3 inches, there are several methods you can use.

The first thing you can do is to measure the distance between the toilet bowl flange and the wall behind the toilet. If it’s more than 2 inches, your toilet is likely a 3-inch. If it’s exactly two inches, it could still be a 3-inch toilet, but it’s probably a two-inch.

Another way to tell is to measure the drainage pipe that’s connected to the toilet. Toilets with a two-inch drain will measure two inches in diameter, while toilets with a three-inch drain will measure three inches.

Finally, you can look at the toilet’s model number if it’s clearly marked on the bowl. A two-inch toilet will typically have a model number beginning with a “2” and a three-inch toilet will typically have a model number beginning with a “3.


In summary, to determine whether your toilet is 2 inches or 3 inches, you can measure between the toilet bowl flange and the wall, measure the toilet’s drainage pipe, or look at the toilet’s model number.

Are all toilet parts universal?

No, all toilet parts are not universal. Toilets come in different sizes and shapes, so the parts that make up the toilet are typically designed to fit that specific toilet model. Generally, different brands of toilets will use different parts and plumbing connections, so it is important to make sure that you purchase the correct parts for your specific toilet.

Additionally, toilets can be sold as individual pieces, such as a tank and bowl, or sold as a complete toilet unit, which will require specific parts for that specific unit. It is important to know your toilet model before purchasing parts so that you can ensure the parts you purchase are compatible and will fit properly.

Can you fit a new toilet yourself?

In short, yes – it is possible to fit a new toilet yourself. However, it’s important to consider the project’s complexity before giving it a try. If you don’t have prior experience in plumbing, the job might be more difficult than you think.

Additionally, bathrooms tend to be confined and tight spaces in which it can be difficult to maneuver – especially when the old toilet must be removed before the new one is set in place.

When fitting a new toilet, it’s important to ensure that you have all the necessary equipment and supplies before getting started. For instance, you’ll need to have the correct tools and fittings as well as a wax ring, bolts, and a water supply line.

You may also need to have a hacksaw and some other forms of cutting equipment.

Once all the components are in place, it’s recommended that you read the manufacturer’s installation guide for specific details about how to install the new toilet. While you may be able to follow general steps outlined in a tutorial, keep in mind that different toilets have different requirements when it comes to installation.

Make sure to follow the instructions carefully and take your time over each step.

It’s also important to consider potential issues with the existing plumbing lines – especially if you’re replacing an old toilet. If you’ve never done this kind of work before, it’s advisable to get the help of a professional plumber to ensure the toilet is installed properly.

Overall, it is possible for a person with some handyman experience to fit a new toilet themselves. However, it is often best to seek the help of a professional plumber to ensure the job is done correctly.

Are most toilets 2 or 3 inch?

Most toilets are 3-inch flange toilets. A toilet flange is the pipe fitting that not only connects the toilet to the drain pipe, but also seals the connection between the toilet and the floor. A standard 3-inch flange is typically used for residential applications and is typically referred to as a residential toilet flange.

A 2-inch toilet flange is generally used for commercial applications, such as in businesses, restaurants, and schools. However, some newer residential applications may require a 2-inch flange, so it is important to check the toilet flange size before purchasing the toilet.

An incorrect size toilet flange can cause installation and other issues with the toilet. It is also important to note that a flange may also be referred to as a closet flange as this is another name for a toilet flange.

Do new toilets come with mounting hardware?

Yes, new toilets typically come with mounting hardware. The mounting hardware is usually included in the box with the toilet and will include the bolts and nuts needed to secure the toilet to the floor.

Depending on the type of toilet, the mounting hardware may also include a wax or polyethylene ring, as well as other items such as a flange or gasket. While not all toilets will include every item, most do come with the basic hardware you need to install the toilet.

If the mounting hardware is not included with your new toilet, you can purchase it at any home improvement store.

Does any fill valve fit any toilet?

No, not all fill valves will fit every toilet. Each toilet is made differently, with different types and sizes of parts. This means that a fill valve designed to fit one toilet model may not fit another one.

To determine the fill valve that you need for your toilet, you should look at the toilet’s model number and match it to a compatible fill valve.

Can you change a toilet rough-in size?

Yes, it is possible to change a toilet rough-in size. A toilet rough-in identifies the distance from the wall to the center of the closet bolts that are used for the mounting of a toilet. Rough-ins are usually 12”, 10”, or 14”.

If your rough-in is not the standard size, you can consider making a few adjustments to accommodate a standard size.

Firstly, if you have an existing tile wall, you can use a drill bit to cut the tile to fit your new size. Secondly, you can use a reciprocating saw to widen the distance between the wall studs, which will allow you to fit a larger toilet.

If you’d rather leave the wall as is, you can purchase a toilet flange extender. This will expand the distance between the closest bolts and the wall and give you the gap that you need to fit the toilet.

In this scenario, you will need to measure your current space accurately to ensure you buy the right size extender.

Lastly, if you have a large enough space, you could use one of the many ‘universal’ toilet styles that fit a variety of rough-in sizes. A universal toilet is a good option if you’re looking for a quick and easy solution.

Overall, changing the toilet rough-in size is possible. Depending on the current conditions of your bathroom, you may need to make some adjustments to accommodate the new size.

What is the difference between a 10 and 12 toilet?

The main difference between a 10 and 12 toilet is the size of the bowl. A 10 inch toilet bowl has a diameter of roughly 10 inches, whereas a 12 inch bowl has a diameter of roughly 12 inches. Generally, 10 inch toilet bowls are considered to be standard size, while 12 inch bowls are considered to be more of a larger size.

In general, 10 inch bowls are made with standard length toilet tanks, while 12 inch bowls can be made with both standard and longer length tanks. Besides the larger bowl size, 12 inch toilet bowls tend to be taller, allowing for a deeper and wider seat in comparison to the 10 inch bowls.

Due to the larger size of the 12 inch bowl, these toilets tend to be slightly more expensive than 10 inch toilets. The larger size also means they take up slightly more space and usually require additional steps during installation.

They also tend to be slightly more difficult to clean because they are so deep.

Overall, it comes down to personal preference as both sizes will provide the same general level of comfort, performance and efficiency.

What is the most common toilet rough in size?

The most common toilet rough in size is 12 inches. Toilet rough-in is the measurement from the wall behind the toilet to the center of the waste outlet on the toilet. Toilets generally use either 10-inch or 12-inch rough-ins, with 12-inch being the most common.

If you already have a toilet installed, you can determine the rough-in measurement by measuring from the wall behind the toilet to the center of the waste outlet. It’s important to get the right size rough-in, as buying a wrong size toilet may require moving drain lines, which could be expensive and complex depending on the existing plumbing configuration.