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What Is the Best Shower Size for Your Bathroom? Explained

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What Is the Best Shower Size for Your Bathroom

If you’re here, it means you are currently designing or renovating your bathroom and wondering what the optimal shower size is for your space. Well, selecting the right shower size can be a crucial decision that can influence your bathroom’s overall look, feel, and functionality.

Whether you prefer a snug, compact shower or a spacious, luxurious one, there are various factors to consider. In this blog post, I’ll explore the different shower sizes available and provide some helpful tips on how to select the perfect size for your bathroom. Let’s dive in and discover the best shower size for your space!

First Thing First, What Factors to Consider?

Although I have added different shower sizes in the section below, it’s important to first understand what factors affect those sizes’ measurements. You must consider the following factors when determining the appropriate shower size for your bathroom.

The Size and Layout of Your Bathroom

The size and layout of your bathroom are the most obvious and crucial factors to consider when determining shower size. If you have a smaller bathroom, you might need to opt for a more compact shower to ensure it doesn’t overpower the space. Similarly, if you have a larger bathroom, you might consider a more spacious shower to complement the room’s size.

How Many People Use It, simultaneously?

If you share a bathroom with others or have a family, you may need to consider the number of users when selecting the shower size. If you have a smaller bathroom, you might need a more compact shower that can accommodate multiple users. However, if you have a larger bathroom, you may have more flexibility regarding shower size and configuration.

What Showerhead Type Do You Want?

The type of shower head you choose can also influence the shower size. If you prefer a rain showerhead, which tends to have a larger surface area, you may need a larger shower to ensure sufficient water coverage. In contrast, if you prefer a handheld showerhead, which typically has a smaller surface area, you may be able to get away with a more compact shower.

Your Personal Preferences & Requirements

Ultimately, your personal preferences and needs should also guide your decision on shower size. For example, if you have mobility issues or require assistance in the shower, you may need a larger shower with grab bars and other accessibility features.

Similarly, suppose you enjoy a more spacious, spa-like showering experience. In that case, you may want to opt for a larger shower with additional features such as multiple shower heads or built-in benches.

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What Is the Best Shower Size for Your Bathroom?

Standard Shower Sizes

If you are planning a walk-in shower, you have the freedom to choose the size you want. In general, if it fits in your bathroom, you can create it.

However, you will be limited to standard available sizes if you opt for a pre-fabricated shower unit. The smallest size is typically 700 mm wide x 700 mm deep. On the other hand, the International Residential Code allows for showers as small as 762 mm x 762 mm. The sizes increase gradually from there, usually up to around 900 mm x 1700 mm.

If you are from United Kingdom and aim for a standard shower size that aligns with ADA accessibility standards, you should aim for at least 900 mm x 900 mm.

Shower Size

Shower Type

Typical Measurements

Small (minimum)


700 mm wide x 700 mm deep



900 mm wide x 900 mm deep

Large (maximum)


900 mm wide x 1700 mm deep


Shower-tub combo

1500 mm wide x 700 mm deep x 1800 mm tall


Shower-tub combo

1500 mm wide x 900 mm deep x 1800 mm tall

Note: In all instances, these measurements pertain to the interior size of the shower, and you will need to allocate some extra room for framing. For your information, Reserving space in front of the shower entrance is crucial for ease of access – a minimum of 500mm is recommended.

Custom Shower Sizes

Yes, custom shower sizes can be an option for those who want a shower that perfectly fits their bathroom’s dimensions and design. Many bathroom designers and contractors offer custom shower options, allowing you to create a shower tailored to your specific needs.

Examples of custom shower sizes include

  1. Small, compact showers for small bathrooms, such as 610 mm x 610 mm or 700 mm x 800 mm.
  2. Larger, luxurious showers for bigger bathrooms, such as 1500 mm x 1500 mm or 1800 mm x 900 mm.
  3. Walk-in showers with multiple shower heads or other features, such as 1200 mm x 1800 mm with a rain shower head and built-in seating.
  4. Corner showers that maximise space, such as 900 mm x 900 mm or 1050 mm x 1050 mm.

When opting for a custom shower size, working with a qualified professional who can help you determine the appropriate size and configuration for your bathroom is important.

Shower Tray Sizes

There are many types of shower tray sizes and shapes, so the dimensions of each vary accordingly. Well, here are the most common shower tray types and their sizes you can opt for according to your requirements.

Tray Shape

Typical Tray Size

Ideal Utility






800mm x 800mm

900mm x 760mm

Compact bathrooms


700mm x 70mm

900mm x 900

Compact bathrooms


800mm x 700mm

900mm x 1700mm

Larger and walk-in bathrooms and shower designs

Note: For your information, the height of a shower tray generally ranges from 25mm to 80mm in most cases.

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What’s the Best Shower Size for Accessible Showers?

A slimline and low-to-the-floor shower tray, almost 25mm, makes getting in and out of the shower easy without stepping up. If you require a shower that is wheelchair accessible, a wet room is often the recommended option.

How To Design and Make a Custom Wet Room?

Designing a custom wet room involves several steps. If none of the traditional shower options suits your preferences, you could opt for a wet room. When creating a wet room, you have the option to add a shower drain by either recessing it into the floor or raising the bathroom floor level to accommodate a sunken drain.

One of the unique advantages of a wet room is the ability to create a custom-sized shower tray with seamless tiling or lino and surround it with the material of your choice. Depending on personal preference, some individuals may opt for a completely open-plan wet room, while others may choose to have a partial screen or curtain to separate the showering area.