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What is the standard bathtub size?

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If you are getting ready for a complete bathroom remodel, selecting the bathtub is the most crucial decision. A bathtub is a pivotal piece that makes a statement in a bathroom, so choosing the right bathtub for the available space is vital.

There are many styles and sizes of bathtubs available in the market, and you can choose one according to the design trend and open space in your bathroom. In this article, we help you learn about the standard sizes of bathtubs so you can select one that gives your bathroom a perfect balance of function and style.

Standard Bathtub Size

The standard size of a bathtub can vary, but the most common bathtub installed in homes are typically around 60 inches (152.4 cm) in length, 30 inches (76.2 cm) in width, and 14 to 17 inches (35.6 to 43.2 cm) in height. 

These measurements are considered standard, but variations, such as larger or smaller tubs, are available to accommodate different needs and spaces. It’s always a good idea to check the specifications of specific bathtubs, as dimensions can vary between manufacturers and models.

Standard Sizes by Bathtub Type

Alcove bathtub

An alcove bathtub is a type of bathtub that is designed to be installed against three walls in a bathroom, creating a nook or recessed area. It is famous for many residential bathrooms due to its space-saving design and easy installation.

The standard size of an alcove bathtub typically ranges from 

  • Length: 60 to 72 inches (152.4 to 182.9 cm) 
  • Width: 30 to 36 inches (76.2 to 91.4 cm) in width
  • Height: 14 to 17 inches (35.6 to 43.2 cm). 

These dimensions are designed to fit comfortably within a standard bathroom space and provide a relaxing bathing experience. The compact and integrated nature of alcove bathtubs makes them a practical choice for smaller bathrooms or bathrooms with limited space. They offer a dedicated bathing area while leaving the rest of the bathroom available for other fixtures and storage.

Freestanding bathtub

A freestanding bathtub is a standalone fixture that does not require any surrounding walls for support. It is designed to be a focal point in the bathroom, offering a luxurious and elegant aesthetic. Freestanding bathtubs provide flexibility and can be placed anywhere as long as the necessary plumbing connections are available.

The standard size of a freestanding bathtub can vary significantly as they come in various shapes and designs. However, a typical range for freestanding bathtubs is typically between:

  • Length: 60 and 72 inches (152.4 to 182.9 cm)
  • Width: 28 to 36 inches (71.1 to 91.4 cm)
  • Height: 23 to 32 inches (58.4 to 81.3 cm)

Freestanding bathtubs generally require more room than alcove bathtubs since they are not confined to a specific alcove or recessed area. The amount of space they take up can vary depending on the size and design of the particular bathtub. It is recommended to allow for ample clearance around the bathtub, typically at least 4 to 6 inches (10.2 to 15.2 cm) on all sides, to ensure comfortable access and a visually pleasing arrangement within the bathroom. 

Corner bathtub

A corner bathtub is a specialized type designed to fit into the corner of a bathroom. It has a triangular or pentagonal shape, allowing it to efficiently use space while creating a visually appealing and unique bathing area.

The standard size of a corner bathtub can vary depending on the specific model and manufacturer. Generally, they range from:

  • Length: 54 to 72 inches (137 to 183 cm)
  • Width: 54 to 72 inches (137 to 183 cm) 
  • Height: 18 to 22 inches (46 to 56 cm)

These dimensions are designed to fit comfortably within the corner of a bathroom while providing enough space for a relaxing bathing experience. Corner bathtubs are popular for bathrooms with limited space or unconventional layouts. They offer a unique and aesthetically pleasing bathing experience while maximizing the use of space in the bathroom. 

Mould at the silicone with tiles and a bathtub

Whirlpool bathtub

A whirlpool bathtub, also known as a jacuzzi bathtub, is equipped with jets that circulate and propel water in a soothing and massaging manner. These jets create a swirling motion called “whirlpool,” providing a therapeutic and relaxing bathing experience.

The standard size of a whirlpool bathtub typically ranges from:

  • Length: 60 to 72 inches (152 to 183 cm)
  • Width: 32 to 42 inches (81 to 107 cm)
  • Height: 18 to 24 inches (46 to 61 cm).

These dimensions provide enough space for the whirlpool mechanism and accommodate a comfortable bathing experience. Generally, a whirlpool bathtub takes up more room than a standard bathtub due to the additional components. A whirlpool bathtub primarily provides a luxurious and therapeutic bathing experience with water jets. Hence, the Whirlpool bathtubs require electrical and plumbing connections to operate the jets.

Therefore, it requires sufficient space for the bathtub and the surrounding access area for maintenance and installation. The exact length it takes will depend on the specific model and any additional features, such as built-in seating or extra jets.

Drop-in bathtub

A drop-in bathtub, also known as a deck-mounted bathtub, is a type of bathtub that is designed to be installed into a platform or deck structure. It is dropped into a pre-built frame or system, exposing only the bathtub’s rim. This installation method allows for flexibility in design and customization, as the surrounding deck or platform can be constructed in various materials and styles.

The standard size of a drop-in bathtub typically ranges from

  • Length: 60 to 72 inches (152 to 183 cm) 
  • Width: 30 to 42 inches (76 to 107 cm) 
  • Height: 18 to 22 inches (46 to 56 cm)

Drop-in bathtubs can be complemented with various features, such as whirlpools or air jets, to enhance the bathing experience further. They are famous for those seeking a seamless and customized look in their bathroom design.

A drop-in bathtub requires enough space to accommodate the bathtub and the surrounding deck or platform. The distance it takes will depend on the bathtub’s specific dimensions and the surrounding structure’s design.

Factors Affecting Bathtub Sizes

When it comes to selecting a bathtub, several factors can influence the size that is most suitable for your needs. Understanding these factors will help you make an informed decision. Here are the key factors affecting bathtub sizes:

Bathroom Space Limitations

One of the primary considerations is the available space in your bathroom. Measure the dimensions of your bathroom accurately, considering the length, width, and height. This assessment will help determine the maximum size of the bathtub that can comfortably fit within the space without overwhelming the bathroom layout.

Remember other fixtures, such as sinks, toilets, and cabinets, that may restrict the available space. Additionally, consider the clearances required for comfortable movement around the bathtub and accessibility for maintenance.

Personal Preferences and Requirements

Your personal preferences and requirements are significant in selecting the right bathtub size. Think about how you plan to use the bathtub. If you enjoy long, leisurely soaks, you may prefer an enormous bathtub with ample space to stretch out comfortably. On the other hand, if you have a smaller bathroom or prefer quick showers, a compact or standard-sized bathtub might be more appropriate.

Consider who will be using the bathtub as well. A smaller bathtub might suffice for a single individual or a couple. However, if you have a family or anticipate having multiple users, an enormous bathtub or one with sufficient seating space might be necessary.

Considering your bathroom space limitations and personal preferences, you can narrow the range of bathtub sizes that best suit your needs. It ensures that the chosen bathtub will fit within your bathroom and provide the desired level of comfort and functionality.

Other Bathtub Considerations

In addition to understanding standard bathtub sizes and the factors that affect them, there are several other important considerations to remember when choosing a bathtub. Here are the key aspects to consider:

Depth and Water Capacity

Bathtub depth is essential in determining the comfort and the amount of water required for a satisfying bathing experience. Consider the desired water depth for immersion and relaxation. Some individuals prefer deeper tubs for full-body soaking, while others prefer shallower tubs for easier accessibility.

Water capacity is closely related to bathtub depth. Deeper tubs generally have a larger water capacity, which may influence water consumption and heating costs. It’s essential to consider the amount of water your bathtub will hold to ensure efficient usage and avoid excessive wastage.

Bathtub Size and User Requirements

Consider the specific requirements of the intended users when selecting a bathtub size. If individuals with mobility challenges or disabilities primarily use the bathtub, accessibility features such as grab bars, non-slip surfaces, and built-in seating might be necessary. It’s essential to choose a size that accommodates these requirements comfortably.

Furthermore, if children use the bathtub, consider the size and depth that will provide them with a safe and enjoyable bathing experience. A bathtub with appropriate dimensions and safety features can ensure children’s and parents’ comfort and peace of mind.

Bathroom Design and Style

The design and style of the bathtub should align with your overall bathroom aesthetic. Consider the bathtub’s shape, material, and finish to complement the existing décor and create a harmonious look. Whether you prefer a classic, contemporary, or spa-inspired design, numerous options are available to suit your style preferences.

Additionally, consider the ease of cleaning and maintenance. Opt for materials and finishes that are durable, resistant to stains, and easy to clean. This ensures that your bathtub remains in good condition and retains its aesthetic appeal over time.

By considering factors such as depth, water capacity, user requirements, and bathroom design, you can choose a bathtub that fits your space and meets your specific comfort, accessibility, and style preferences.


The size of bathtubs varies according to the type of tub and its installation. While choosing the bathtub, you must consider the space available. As the leading provider of luxury bathroom fixtures for over 40 years, George Bathrooms has a variety of bathtub sizes designed and engineered with performance and luxury in mind. Check out our collection here.

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