A bath is a key feature in your home, so choosing the right one needs careful consideration. It should be the perfect fit, look stylish, and be practical as well as comfortable. Whether you’re renovating your whole bathroom or replacing an old tub, size really matters. Get it wrong, and your bath might feel cramped, overwhelm the room, or simply not suit the way you want to use it.
In the UK, standard bath sizes suit most homes, but there’s also an enormous variety of alternative options if you want (or need) something a little different. From small bath sizes that make the most of compact bathrooms, to generous freestanding tubs designed for spa-like relaxation, there’s something for everyone.
Our comprehensive guide will explain the options and give you tips on how to choose a bath that feels perfect for your home.
What Are the Standard UK Bath Sizes?
Wondering about bath sizes in the UK? The most common UK bath size is:
Length: 1700mm
Width: 700mm
Depth: 400-450mm
This size works well for a variety of rooms and is spacious enough for most adults.
Other sizes include:
- Small/Compact: 1200mm to 1500mm long, 700mm wide.
- Large: 1800mm long and 800mm wide or more.
- Depth: The standard depth is approx. 550mm.
Bathrooms come in all shapes and sizes, and so do baths. Whether your space is smaller than average or you’ve got room to spare, you’ll have plenty of choice.
What Are The Different Types of Baths and Their Sizes?
Straight Baths
Size: 1700 x 700mm (standard), or slightly wider at 750-800mm.
The classic option. This style is fitted against a wall and works well with most room layouts.
Small/Compact Baths
Size: 1200-1500mm long, 700-800mm wide.
Designed for smaller bathrooms and en-suites. Many are a little deeper so you can still enjoy a proper soak.
Freestanding Baths
Size: 1500-1800mm long, 700-900mm wide.
These statement pieces often become the focal point of design for the bathroom. Available in both traditional roll-top and modern designs, you’ll often see them on an elevated plinth for an ultra-luxurious look.
Shower-Baths (P-Shaped or L-Shaped)
Size: 1500-1800mm long, 700-850mm wide at the shower end.
A practical solution if you want the best of both worlds. The wider end gives more elbow room for showering.
Corner Baths
Size: 1200 x 1200mm up to 1500 x 1500mm.
These are great for making the most of tricky spaces. Despite their compact footprint, they can feel surprisingly roomy.
L-Shaped Baths
Size: typically 1700 x 850mm at the wider end.
This is a modern, square style that doubles as a spacious shower.
P-Shaped Baths
Size: usually 1700 x 850mm max.
This shape is styled — as the name suggests, with a curve — giving the bath a softer look and more space at the shower end.
How to Measure Your Bathroom Space Accurately
Measuring your proposed space is vital to avoid costly mistakes. Before starting your search for the perfect bath, read these tips:
- Measure the area carefully
Length, width, and depth. Repeat to be sure you’ve got it right.
- Think about the space
Will existing doors, drawers, or cupboards open easily once the bath is in place?
- How deep do you need it?
A deeper tub might be tempting for a luxurious soak, but could be harder to get into.
- Floor and wall fittings
Tiles, panels, or flooring can all reduce the available fitting space.
Taking a few extra minutes to measure now will save you a lot of hassle later.
What are the ideal bath sizes for small bathrooms?
A small bathroom doesn’t have to mean sacrificing comfort. In fact, many small bath sizes are cleverly designed for relaxation and practicality in a smaller footprint.
Options include:
- Short straight baths (down to 1200mm)
- Corner baths
- Shower-baths or walk-in showers; these give you the option of a soak or a shower, without taking up extra space. Take a look at our range of walk-in shower price guide for more inspiration.
If you’re really tight for space, why not consider something a bit different, like a Japanese-style deep soaking tub. These are shorter, deeper tubs (sometimes up to 800mm), so you can sit comfortably in shoulder-deep water.
What are the right bath sizes for large bathrooms?
If you’re lucky enough to have a big space, why not make your bath a stand-out feature? Here are some exciting options to choose from:
- Extra-long straight baths
Up to 1900mm for the taller person, or for sharing.
- Freestanding baths
These are often placed in the middle of the room as an eye-catching design statement, and can be mounted on a plinth for extra impact.
- Double-ended baths
Both ends are sloped for comfort (ideal for sharing).
- Spa-style whirlpool baths
For a little at-home luxury.
It can be easy to feel overwhelmed by choice. The key is to choose something that works for your needs and makes the room feel cosy and inviting.
Why Does Bath Size Matter?
Baths are practical items, but they also impact how you live your day-to-day life.
Here’s why it matters:
- Comfort
No one wants to feel cramped – it’s hard to relax if you’re battling for space in the tub.
- Accessibility
A lower edge or walk-in bath can be easier to get in and out of, especially if mobility is a concern.
- Layout
The right bath makes the most of your space and can have a huge impact on the look of a room.
- Household needs
In a mixed-need household, it’s important to balance practicality with comfort.
- Running costs
Bigger baths use more (hot) water. This can be especially relevant if you’re on a water meter.
Other Things to Think About
- Material: acrylic baths are lightweight and more affordable. Cast iron or stone baths hold heat longer, but are heavy and may mean you need to reinforce the floor.
- Plumbing: check the waste position and make sure it works for your current pipework.
- Style: with so many to choose from, your bath should suit your bathroom’s personality and design.
- Installation: a professional fitter can save you time, stress, and money in the long run.
Tips for Choosing the Perfect Bath
- Always measure accurately.
- Think about who will be using the bath.
- Balance style with practicality.
- Plan ahead; an accessible bath may be a smart long-term choice.
Always get professional advice first.
The right bath for your home is a practical, long-term decision as well as a personal style choice. It’s somewhere to relax, unwind, and soothe those aching muscles. Whether you have a small en-suite or a large family bathroom, there’s a bath size and style to suit.
Take the time to measure, plan, and think about how you’ll use the bath and space so that the bath feels just right, every time you use it.
FAQs
Are all baths 700mm wide?
No. 700mm is the most common width, but you’ll find baths as narrow as 650mm and as wide as 900mm.
What is the ideal size for a bath area?
For a standard bath size, allow at least 1700 x 700mm, plus room to get in and out comfortably.
What size is a full bath?
In the UK, a full-sized bath is approx. 1700mm long and 700mm wide.
Can I fit a bath in a very small bathroom?
Yes. Compact baths start at around 1200mm, and clever designs like corner, deep tub or shower-baths help make the most of limited space.
Do I need a professional installer?
It’s recommended; an expert can make sure your bath is fitted safely and correctly.
What’s the largest bath size I can buy?
Some freestanding or luxury baths go up to 1900mm long and 900mm wide; perfect for large bathrooms where space isn’t an issue.
