Bathtub Dimensions: Standard Sizes, Tips, and More

Last Updated on December 5, 2023 by Jason Nguyen

When it comes to bathroom remodeling, one of the most important decisions you will make is what type of bathtub to install. There are a variety of different sizes and shapes available, so it can be difficult to know which one is right for your needs.

In this blog post, we will provide an overview of standard bathtub dimensions and offer some tips on what to consider when making your purchase. We hope that this information will help you make the best decision for your home!

Standard Bathtub Dimensions.

The standard bathtub dimensions of a regular-sized tub are 60 inches long by 30 inches wide. This is the most common size and generally fits in smaller bathrooms without taking up too much space.

It’s also comfortable enough to fit two people in it at once, making it ideal for couples who want to share a bubble bath.

Bathtub dimensions in Australia.

When shopping for a new bathtub, you need to consider the size of your space and the size of the tub itself. In Australia, bathtubs come in several standard sizes depending on what type of bathroom they are being used in.

If you are looking for a standard-size bathtub, then you should look at the dimensions for a standard length bathtub. These are usually available in 1400mm, 1500mm, and 1600mm lengths. The width of these tubs can vary from 700mm to 800mm, while the depth is typically around 400-430 mm.

If your space allows for it, you could also opt for a larger bathtub such as a corner bathtub or an alcove bath. Corner baths usually come in 1500mm x 1500mm and 1800mm x 800mm sizes, while alcove baths range from 1700mm to 1900mm in length. The depth of these tubs is typically a bit larger than standard-size tubs at around 430-470 mm.

Bathtub dimensions in the UK.

Bathtubs in the UK come in a variety of sizes, so it’s important to know your measurements before you buy a new bathtub. Standard in-built baths are typically 1800mm by 800mm (71in x 31in), although there is some variation depending on the manufacturer and model.

Freestanding baths can be larger and come in a variety of shapes and sizes. Baths with shower enclosures are generally 1700mm by 800mm (66in x 31in).

It’s always important to measure your bathroom space before making any decisions, as it will help you find the perfect bathtub for your needs.

Small bathtub dimensions.

When space is limited, the best option for a bathroom remodel may be a small bathtub. Small bathtubs are typically sized at between 42 to 60 inches in length and 28 to 34 inches in width.

This size is great for fitting into tight spaces such as apartments or small bathrooms, but still offers plenty of room for a comfortable bathing experience. Additionally, small bathtubs are easier to clean and maintain due to their compact size.

Freestanding Bathtub Dimensions.

A freestanding bathtub is one that stands alone and is not attached to a wall or other fixture. This type of tub comes in a variety of sizes and shapes, ranging from oval, round, and rectangular to more free-form designs like clawfoot tubs.

When it comes to size, they can range anywhere from 40 inches long up to 72 inches in length, with depths ranging from 14 to 24 inches.

Clawfoot Freestanding Bathtub Dimensions.

Clawfoot freestanding bathtubs are a classic and stylish way to add a luxurious look to any bathroom. These tubs come in many sizes and shapes, depending on the space you have available.

Clawfoot tubs are typically wider than standard five-foot rectangular bathtubs, ranging from 30 inches for smaller baths to up to 72 inches in length.

If you need more room than a standard five-foot size provides, then you can opt for a six-foot or even a seven-foot clawfoot tub.

The height of the tub is generally 27 to 30 inches, making it easy to step into and out of comfortably. Clawfoot bathtubs also come with different types of feet, from classic porcelain ball and claw feet to more modern metal designs.

The feet also come in different finishes to match the decor of your bathroom. Clawfoot freestanding tubs can be used with a shower attachment or as a standalone tub for soaking. They are a timeless addition to any home that will add value and an elegant look.

Alcove Bathtub Dimensions.

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An alcove tub is the most common type of bathtub and can be found in many bathrooms. This type of bathtub is typically installed against three walls, including a back wall and two side walls.

The overall dimensions of an alcove tub can vary, but they are usually around 60 inches long by 30 to 32 inches wide with a depth of 16 to 20 inches.

These tubs are designed to be relatively small, so they can fit into the space between three walls without taking up too much room. However, alcove bathtubs are still large enough for a comfortable and luxurious soak.

They usually come with an integral apron or skirt that extends past the edges of the tub and covers the sides of the walls. This helps to create a finished look that ties the bathtub into the overall design of the bathroom.

Drop-In Bathtub Dimensions.

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If you are looking for a more modern look in your bathroom, then a drop-in bathtub is the perfect option. This type of tub sits on top of the platform used to support it and can be installed at ground level or slightly above the surface.

The average dimensions for these types of tubs range from 60-72 inches in length and 27-48 inches in width. The depth of drop-in tubs also varies, with some models offering a deeper soaking experience than others.

Depending on size and shape, you can even bring luxury features such as jets or LED lighting to your bathroom with one of these stylish tubs!

Undermount Bathtub Dimensions.

An undermount bathtub is a type of bathtub which is mounted beneath the bathroom floor, creating an illusion of a continuous surface.

An undermount bathtub typically differs in size from traditional freestanding baths, ranging in length from 60 to 72 inches and widths between 30 and 42 inches.

The depth of these tubs tend to be shallower than their freestanding counterparts, ranging between 19 and 22 inches. This type of bathtub may require special installation due to its nature and size.

In addition to being installed beneath the floor, an undermount bathtub is typically attached at the sides with mounting brackets that attach both directly to the tub and then into the wall framing for stability.

Corner Bathtub Dimensions.

Corner bathtubs are a great option when you’re short on space. They are typically triangular or square in shape, and are designed to fit snugly into a corner of the bathroom.

Corner bathtubs generally range from 32” to 60” in width, with heights that can range anywhere from 18” to 24”.

Corner bathtubs vary in shape, size, and style to suit your bathroom’s unique needs. Some come with jets and other features for a luxurious spa experience, while others are simply designed for an invigorating soak.

Walk-in Bathtub Dimensions.

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A walk-in bathtub is designed for those who need or prefer a higher level of accessibility. It features a door that allows the user to enter and exit the tub without having to step over a high lip.

These types of tubs come in various sizes, but they typically measure between 34–47 inches wide, 59–72 inches long, and 39–47 inches deep.

Due to the increased size, they are able to accommodate bath seats and other accessories that add comfort and convenience. Walk-in tubs also feature anti-slip surfaces, grab bars, and a shallow step for easy access.

Jacuzzi bathtub dimensions.

A Jacuzzi bathtub is a luxurious addition to any bathroom. It features adjustable jets and massage settings, as well as a roomy interior size, making it perfect for long soaks.

Most standard Jacuzzi tubs measure between 60-72 inches in length and 30-36 inches in width. However, some of the larger models are up to 84 inches long and 42 inches wide.

This spacious size gives plenty of room for two adults to relax in one bathtub. With a Jacuzzi tub, you can enjoy spa-like relaxation in the comfort of your own home.

Narrow bathtub dimensions.

If you have limited space in your bathroom, a narrow bathtub might be the right choice for you. Narrow tubs usually measure between 55 and 60 inches long, making them ideal for smaller bathrooms or those with an oddly-shaped alcove.

As far as width goes, they can range from 30 to 32 inches wide. If you’re looking for a true space-saver, you can even find extra-narrow bathtubs that measure in at just 24 or 25 inches wide.

Whirlpool bathtub dimensions.

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Dimensions of a whirlpool bathtub can vary greatly depending on the size and shape you select.

The smallest options are typically around 60 inches long and 30 to 32 inches wide. For larger tubs, they can measure up to 72 inches long and 42 inches wide.

When it comes to the depth of your whirlpool bathtub, that usually ranges from 15 to 22 inches.

When calculating the proper size for your bathroom, make sure that you leave enough space around the tub for easy access and movement.

Oval bathtub dimensions.

An oval bathtub is a great choice for people looking to save space in the bathroom. They are typically wider than rectangular tubs, but not as long.

This shape can be both aesthetically pleasing and practical for those with limited space. The average dimensions of an oval bathtub are 60″ x 42″, though sizes may vary slightly depending on the manufacturer.

Bathtub rough in dimensions.

Rough in dimensions refer to the space needed between studs, joists, and walls for a bathtub. This is the area where all of your plumbing fixtures will go.

The standard size for a bathtub rough-in is 60″ wide by 30″ deep, although this can vary depending on the type of tub and where it is installed.

Bathtub framing rough-in dimensions.

When framing a new bathtub installation, you’ll need to make sure that the rough-in dimensions are correct. This will ensure that your tub fits properly and securely in its space.

The standard size for framing a bathtub is 61″ wide by 32″ deep, but it’s always best to double check with the manufacturer before beginning any work.

Bathtub rough-in plumbing dimensions.

When it comes to plumbing a bathtub, there are two sets of rough-in dimensions that need to be taken into account. The first is the distance from the wall studs or joists and the second is the distance from the center line of the waste/overflow unit.

For a standard size tub, these distances should be 6″ and 5″ respectively, but again, it is best to double check with the manufacturer for any tubs that are not a standard size.

Bathtub framing dimensions.

Before framing a bathtub, it is essential to know the standard sizes. According to the National Kitchen and Bath Association (NKBA), the recommended measurements for a bathtub are 60 inches in length and 30 to 32 inches in width, with 14 to 16 inches of water depth.

Generally, alcove-style tubs come in standard dimensions of 60 inches in length and 30 inches in width. Corner tubs can range from 48 to 60 inches in length on each side with a depth of 14 to 20 inches or more.

Freestanding tubs come in various sizes from round, oval, square, rectangle and asymmetrical shapes ranging from 40 to 70 inches long and 28 to 42 inches wide with a depth of 13 to 22 inches.

Bathtub shower combo dimensions.

The standard dimensions of a bathtub shower combo depends on its type. For example, an alcove combo typically measures 60 inches in length and 30 to 32 inches in width. A corner style bathtub shower combo may be up to 32 inches wide and 36 or 42 inches in length.

A drop-in tub with a pre-made surround usually is 44 to 52 inches long and 22 to 24 inches wide. The depth of the bathtub shower combo will vary but is usually 18 to 20 inches.

An undermount tub with a tile surround is typically deep enough for comfortable bathing, measuring around 21 to 23 inches in depth.

How to measure bathtub dimensions

To accurately measure the dimensions of your bathtub, you will need a measuring tape and possibly a level. Start by measuring the width of your tub from one side to the other. Pay close attention to any curves or angles that may affect the overall measurement. You can also measure the height of each wall, as well as the depth at which the floor of the tub sits.

Next, check the area around your bathtub to make sure you don’t miss any protrusions or obstructions that may affect overall measurements. You will also want to measure the distance between the bathroom wall and the rim of the tub; this is known as the backset. This measurement can be crucial if you are considering replacing or remodelling your bathtub.

Once you have all of these measurements, it’s time to measure the other features of your bathtub. Check the lip edge or apron of the tub, which is the visible part that sticks out from the wall; this should also be measured with a measuring tape. Additionally, measure the distance from a side to the faucet for any tubs with handheld shower heads or wall-mounted fixtures.

Finally, use a level to check that the bathtub is properly installed and level. This step ensures that your measurements are accurate and that your bathtub is safe to use once it’s installed. After taking these measurements, you will be able to determine the exact dimensions of your bathtub and can begin shopping for a replacement or remodel accordingly.

How much space is needed for a bathtub?

The answer to this question depends on the size of the bathtub and how much surrounding space is needed. Generally, a standard alcove bathtub requires at least 60 inches in length and 30-32 inches in width.

When installing an alcove tub, you also need to take into account the additional space for plumbing fixtures such as valves, pipes and drains, as well as for the walls that will surround the bathtub.

If you intend to use a drop-in or freestanding tub, you’ll need additional space to accommodate these larger fixtures. Therefore, it’s important to measure your bathroom carefully before selecting a tub and plan accordingly.

Additionally, many local building codes provide guidance on the minimum space required for a bathtub installation. It’s a good idea to consult these codes before embarking on any major remodeling project.

What is the actual size of a 60 inch bathtub?

Generally, a 60 inch bathtub is roughly 5 feet long and 30 inches wide. This size of bathtub is ideal for larger bathrooms as it has enough space to comfortably accommodate two bathers at the same time.

It also allows you to have plenty of space to move around while washing or bathing. For this reason, it is often the preferred choice for those with large bathrooms or families who need the extra room.

Additionally, 60 inch bathtubs are also quite popular among those looking to install a luxurious spa-like experience in their bathroom. With this size of tub, you can fit some of the larger whirlpool jets and other features that many modern baths now offer.

How do you measure if a bathtub will fit?

The first step in determining if a bathtub will fit is to measure the available space. Measure the length, width and height of the space where you want your bathtub placed. The most important measurement is the length of the space since it’s usually the longest dimension for a bathtub. Have someone help you with this task so that you take the most accurate measurements.

Once you’ve taken the measurements of your space, compare it to the size of the bathtub you want. Most tubs come in standard sizes, ranging from five feet to six feet long and two to three feet wide. Different styles may come in different shapes and sizes, so make sure to measure your space accordingly.

Another important factor to consider is the height of the bathtub. Some tubs are designed to fit flat against walls, while others may be higher and require more clearance for installation. Measure from the ground up, taking into account any extra drain or plumbing pipes if necessary, to ensure that you have enough room for the tub.

Finally, you should also account for any obstacles in the space that could potentially interfere with the installation of your bathtub. Make sure there are no pipes or wiring running along the wall where the tub will be placed and make sure to double check measurements before purchasing a new bathtub.

How far does a tub have to be from a wall?

It depends on the type of tub and the size of the wall. Generally, a tub should be at least 12 to 18 inches away from any walls or fixtures for optimal performance. This ensures that there is enough space for water to drain away without needing to build an enclosure around the tub.

Additionally, if your tub is placed too close to a wall it can interfere with the performance of the plumbing and lead to potential problems in the future.

If a tub is being placed near or against a wall, it’s important to take into account any insulation that may need to be installed and any other structures that could interfere with its proper installation.

Can bathtubs be cut to size?

The short answer is yes, bathtubs can be cut to size. Depending on the materials of the tub and the modifications being made, homeowners may find it necessary to hire professional help in order to get the job done safely and properly. If a homeowner has experience with do-it-yourself home improvement projects, then cutting a bathtub is possible with the right tools.

When cutting a bathtub, it’s important to take extra care over safety concerns. Wear protective gear such as gloves and eye protection when working with power tools, and make sure to place thick cloths or other coverings on the surface of the tub to avoid damaging it.

Depending on the material of the bathtub, the appropriate tools to use for cutting will vary, so it’s important to research and understand what materials are best suited for the job.

Once the cutting is complete, homeowners can expect to fill in any gaps with caulking or sealant and sand down any rough edges. Depending on the modifications being made, additional repairs may also be needed to make sure the tub is properly sealed and ready for use.


In conclusion, when selecting the right bathtub for your needs, it is important to consider factors such as your available space, desired features and installation requirements. Knowing the standard bathtub dimensions can help you make an informed decision on which type of bathtub will work best in your home.

With a variety of sizes and styles to choose from, there is sure to be a bathtub that fits your needs and budget. Remember to keep safety in mind when choosing the right size for elderly or young children.

With the proper measurements and a bit of research, you can find the perfect bathtub for your home.