What Size Bath Do You Need?

From bath size to bath type, there’s a lot to consider when spending money on a new bath to take pride of place in your bathroom.

Perhaps you’re updating your bathroom? Maybe you want to relax and just have a shower? You may want it for washing your little ones? 

Whatever the reason, we’ve created this guide to help you find the ideal bath size for your space.

Read on to find out how to find out the perfect size bath for your bathroom…

What is a standard bath size?

A huge amount of attention is always given to the design and layout of bathrooms. Size doesn’t limit the quality of bathroom style. There are standard measurements and dimensions for bath sizes:

  • The average UK bath size is: 1700mm in length and 700mm wide
  • A small bath size is: 1400mm-1500mm in length and 700mm wide
  • A large bath size is: 1800mm in length and around 800mm wide

The average bath size is based on the most commonly found type of bathtub in the UK - the single-ended bath.

The standard height for a bath is around 550mm, which includes single-ended and straight baths as well as corner and free-standing bathtubs. A straight, single-ended bath with dimensions of 1700mm x 700mm will have an average height of 545mm, which will result in a capacity of 200l.

What are the types of bath?

At Plumbworld, we stock a large variety of bath types, including the most popular among UK buyers.

The most common styles of bathtubs are:

Straight Baths

Straight baths are found in the majority of UK homes and fit in the most compact of spaces. These bathtubs are available in either steel or acrylic in either single or double-ended versions.

The straight type of bathtub is usually surrounded by a bath panel, which can mean it is called an inset bath. They are usually installed against a wall, or in the corner of the bathroom to save space. Another benefit of the straight bath is that they also double as a shower bath if you add a bath screen or shower curtain.

What’s the difference between a single-ended and double-ended bath?

The main difference between these two versions of straight bath is how you use them and where the taps are positioned.

With a single-ended bath, they are typically designed for one-person usage. The taps are located at one end, which is ideal for shower baths, which is a vertical wall where the plug is positioned while the other has a gentle slope.

A double-ended bath is designed for two people usage. The taps and plug are positioned and fitted in the centre of the tub - the taps are either fixed to the wall or bath itself. This means each end has a slope, allowing two people to bathe together or one person to stretch out. The majority of free-standing baths are double-ended.

The standard size for a straight bath is: 1500mm - 1800mm long x 700mm - 800mm wide

Corner Baths

Corner baths are an excellent space-saving solution, slotting neatly into one corner of your bathroom. A corner bathtub is often wider and shorter than a straight bath, which can be easier to install, and can even be used as a shower bath due to the additional width.

Some models have a built-in seat or raised lip which helps with washing small children and mobility. Their rounded deep slot shape can give the feeling of settling down into the hot tub and your local spa. Add jets to create an even more luxurious dip. Corner baths require a bath panel to finish the look with most being provided with them.

The standard size for a corner bath is: 1200mm - 1600mm long x 900mm -1400mm wide

Free-standing Baths

If you have the space to play with, free-standing baths provide the ultimate in luxury and don’t have to be placed against a corner. Due to their free-standing nature, these tubs can become a show-stopping centrepiece of your bathroom in modern or traditional styling. 

Free-standing baths don’t require a finishing panel and are double-ended for a spa-like look, allowing for two people to bathe at the same time. However, drainage and island bathtub fittings may require professional installation. This is due to the plumbing having to be modified. If you have the cash, these are the tubs to splash-out on.

Read more: The Complete Freestanding Baths Guide

The standard size for a free-standing bath is: 1800mm x 800mm and 500-600mm deep

Whirlpool Baths

Whirlpool baths, or spa baths, offer a relaxing and luxurious bathing experience in your own home. As the name suggests, these baths are fitted with whirlpool jets which are placed on the side shell of the bath, they’re then operated by controls.

These contemporary baths are at the height of luxury, as they include special features which help to ensure the user is as comfortable as possible. Chromatherapy, the use of lights used to relax a user, is a feature with Plumbworld whirlpool baths and can be combined with hydrotherapy for soothing effects.

The standard size for a whirlpool bath is: 1700mm x 750mm or 1800mm x 850mm

How to measure for a bath?

Buying a bath that’s too big or small is an easy mistake and can lead to delays with your renovation project.

Here’s our step-by-step guide to measuring for a bath - using a straight bath as an example:

  1. Pick the space where you’ll place the tub - if it’s near a door, remember to consider this and how far it opens.
  2. For the length, measure the distance from one side of your bath, or the space it’ll fill, to the other.
  3. For the width, measure from the back wall outwards making sure to consider anything in the way - basin, cabinets etc.
  4. For bath height, on the bath’s exterior, measure from the floor to the top edge. This will also help if you need a bath panel.
  5. If your walls are tiled, remember that the bath will sit slightly beneath them, so measuring the length from tiled wall to tiled wall will be different to the actual length.

To measure the length of free-standing baths, the height and width are measured using the top edge or lip. For the depth, measure from the floor to the top edge and will include the bathtub’s feet if you’re buying this style of free-standing tub.

Just bear in mind that you will need to leave space around the tub for taps etc.

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Don’t forget to check out the rest of our blog for more bathroom advice…

What are the Different Types of Bathroom Mirror? | A Guide to Bathroom Heating | What is a Digital Shower & How They Work