Bathrooms are often short on space, so it’s essential to make the most of every inch available. Whether you’re planning a bathroom renovation in the UK or simply upgrading your fixtures, understanding the standard bath size and exploring various bathtub sizes in the UK will help you choose a model that fits perfectly and maximizes comfort.
Below is a quick UK bath size guide outlining the four main types of baths: straight, freestanding, whirlpool, and corner. To simplify your choice, you can also refer to the bath sizes chart (UK), which lists typical bath dimensions for each model.
Types of Baths & their Sizes
There are four basic bathtub types in the UK: straight, freestanding, whirlpool, and corner bathtubs. Nearly 13 sq. ft of space should be available regardless of the bath type or size you choose.
Fitting the bath with the right bath dimensions is extremely important, as it directly affects your comfort while bathing. For example, if you install a bath that is too small, it may not be suitable for you or your family. On the other hand, a large bathtub in a small bathroom can create space issues, limiting movement and making other fixtures difficult to use.
Therefore, it’s important to select the bathtub size carefully, considering your bathroom layout and available space. In general, bath sizes in the UK range from 1200mm to 1800mm in length, covering both small and large bathroom designs.
Standard Straight Baths
Straight bathtubs are the simplest and most commonly used bathtub types in the UK. These fitted baths are a popular choice for both traditional and modern bathrooms due to their clean design and space efficiency. In compact spaces, they are often installed as a built-in shower and bath combination, enclosed by three walls for better functionality.
The standard bathtub size in the UK for a straight bath is typically around 1500mm in length, 800mm in width, and 500–550mm in depth. Larger bath dimensions in the UK, such as 1700mm or 1800mm in length, are more suitable for spacious bathrooms, while smaller sizes offer a perfect fit for compact layouts and en-suite installations.
Although small bathtubs are not very common, they have gained popularity due to minimalist trends and lack of space in the bathroom. These small bath sizes in the UK usually measure about 1300mm in length and 700mm in width, with a depth of around 15 inches, providing a practical solution for limited spaces. On the other hand, large straight baths can measure up to 1800mm in length, 900mm in width, and around 400mm in depth, offering a luxurious and comfortable bathing experience.
Shower Baths
Shower baths are a popular fitted bath type in the UK, designed to combine both a shower and a bathtub into a single, practical fixture. They’re ideal for small to medium-sized bathrooms, where saving space without sacrificing comfort is essential.
These baths are available in various shapes, including straight shower baths, L-shaped baths, and P-shaped baths. A shower screen is typically installed at the shower end to prevent water from splashing out, creating a neat and efficient layout.
The standard shower bath sizes in the UK range from 1400mm to 1800mm in length, with width options of 700mm, 750mm, and 800mm. The bath capacity in litres varies depending on the model, averaging 88–148 litres for straight shower baths.
For more spacious bathrooms, L-shaped and P-shaped shower baths provide a modern look and a wider showering area. These models are available in 1500mm, 1600mm, and 1800mm lengths, with widths up to 850mm, offering a bath capacity between 170 and 220 litres. The bath depth for these designs usually starts from 425mm, providing both functionality and comfort.
When comparing options, use a simple bath size comparison table to check which shower bath dimensions best fit your bathroom layout and water capacity needs.
Single Ended and Double Bath Sizes.
The single-ended baths are designed to provide a comfortable bathing experience for one person. Having the bath fillers and drain at one end, along with a reclined rectangular interior, makes them a perfect option for a standard UK bathroom. These are available in 1400mm, 1500mm, 1600mm, 1700mm, and 1800mm lengths, and 700mm, 750mm, and 800mm widths, offering flexibility for different bathroom sizes in the UK.
A double-ended bath, on the other hand, features a symmetrical design with the bath taps and drain positioned in the centre. Designed for couples or two people to enjoy a spacious and relaxing soak, the sloped ends on both sides provide exceptional comfort. Typically larger than single-ended baths, they require a bit more room in the bathroom. These baths are available in 1700mm and 1800mm lengths, with widths of 700mm, 750mm, and 800mm. The bath capacity in litres usually ranges from 91 to 146, depending on the size selected.
Freestanding Bathtubs
Freestanding bathtubs are often deeper and longer. They are approximately 6 to 8 inches wider than standard alcove bathtubs, offering extra comfort and depth.
Freestanding bathtubs generally measure around 1500mm in length and 1500mm in width, with a height of about 600mm. Smaller bathrooms often find it difficult to accommodate oval or freestanding baths, as these models are better suited for spacious bathrooms.
Whirlpool Bathtubs
Whirlpool bathtubs are available in various styles, designs and sizes. Preferred for spa-like experience, these baths use an air or water gradient stream that keeps water hot for a longer duration and creates a therapeutic sensation. The average length of a whirlpool bathtub in the UK is around 1500mm, width from 800mm to 1000 mm, and height from 450mm to 600mm.
Corner Bathtubs
Corner bathtubs feature a triangular shape and are installed neatly into the corners of a bathroom. They are usually designed for larger bathrooms, with both sides of equal length, typically ranging from 1200mm to 1800mm, and a depth of around 400mm to 450mm. These baths make excellent use of corner space, providing a stylish yet functional solution for modern layouts.
Note: The rate of innovation in bathtub designs continues to grow rapidly. Many new bath styles and sizes are now available on the market, including clawfoot bathtubs, soaking bathtubs, undermount bathtubs, and walk-in bathtubs, catering to both contemporary and traditional UK bathroom designs.
Is There a Standard Size Bath?
Knowing the standard bath size can help you understand what dimensions will best suit your bathroom. The standard bath size may vary from country to country, depending on the average bathroom layout and available space.
For a standard bath in the UK, the typical dimensions are around 1700mm in length, 700mm in width, and a height of approximately 500mm. This size is considered the best fit for most standard UK bathrooms.
However, if you prefer a larger bathtub, the large bath sizes in the UK generally start from 1800mm in length. For smaller bathrooms, a compact bath size of around 1500mm is often ideal, providing a comfortable soak without taking up too much space.
Final Thoughts
Choosing the right bathtub size should always be based on the overall dimensions and layout of your bathroom. The standard bath size in the UK is 1700mm, which suits most bathroom spaces comfortably.
If you have extra room available, you can opt for a larger 1800mm bath, which offers a more spacious and luxurious bathing experience. Conversely, for smaller bathrooms, a compact bath size between 1400mm and 1700mm is often the best choice.
Ultimately, your final selection will also depend on whether you prefer a single-ended or double-ended bathtub, as both styles influence the available space and comfort level differently.