Shower Tray Sizes Guide: Dimensions, Widths & Measurements

Whether you are installing a shower enclosure or a wet room, selecting the right shower tray sizes is an essential part of the process. A well-chosen shower tray creates a stable, waterproof base that prevents water from seeping into your bathroom floor and causing damage.

Additionally, installing a shower tray with proper shower tray dimensions ensures efficient water drainage. However, choosing the right shower tray is not as simple as it may seem.

You will need to look for many factors — including the shower tray width, shape, and overall shower tray measurements — to get everything right. According to RIBA’s building design resources, bathroom fixtures should always be planned with precise measurements to avoid costly mistakes.

In this guide, we will help you learn how to choose the perfect shower tray for your bathroom.

Understanding Shower Tray Dimensions and Measurements

Before diving into specific sizes, it helps to understand how shower tray measurements work. Shower trays are measured in millimetres (mm), with the width being the primary dimension to consider. The shower tray width determines how much standing room you will have, while depth and height affect drainage and installation.

Most manufacturers produce shower trays sizes in standardised increments — typically starting from 700mm and going up to 1800mm. The size you choose should correspond to both the available floor space in your bathroom and the type of shower enclosure you plan to install.

Standard Shower Tray Sizes

If you have a standard bathroom layout, then you can choose from these common shower tray sizes.

For most households, an 800mm or 900mm shower tray width provides a comfortable showering area without taking up too much floor space.

Walk-in Shower Tray Sizes and Large Shower Tray Sizes

Walk-in shower trays are usually large and, depending on the shape you choose, can be interchangeably used for the large shower cubicle as well.

Whether you choose a square shape or rectangular, any of these shower tray dimensions will complement your walk-in shower or a large bathroom perfectly.

Shapes and Sizes of The Shower Trays

You can find a variety of shower tray sizes at Royal Bathrooms. But if you want to go large, then your shape options will become limited.

You can explore the various shower trays sizes depending on their shapes in the table below.

Shower Tray Materials: What to Consider

The material of your shower tray affects durability, weight, and heat retention. Here are the most common options:

Stone resin trays are among the most popular choices in modern bathrooms. They are lightweight yet incredibly strong, and they retain heat well for a comfortable shower experience.

Acrylic trays are budget-friendly and come in the widest range of shower tray sizes. However, they may flex underfoot if not properly supported with a leg set or riser kit.

Ceramic and fireclay trays offer a traditional appearance and excellent durability, but they tend to be heavier and more difficult to install.

When choosing materials, also consider the shower tray dimensions available in each material, as some materials may have limited size options. For a deeper look at bathroom material trends, ArchDaily’s bathroom design section offers useful insights.

Step-by-Step Process of Choosing the Shower Tray Size for Your Bathroom

You will need to consider various factors while determining the right shower tray measurements for your bathroom.

1. Determine the Available Space

The first step in selecting the right shower tray size for your bathroom is to know the overall dimensions of your bathroom.

The process includes determining the available area for your shower while taking into consideration various obstacles like doors, vanity units, and other fixtures.

You will need accurate measurements — do not guesswork as it may create trouble at the time of installation.

So, use measuring tape and note down all the details on a piece of paper. This will help you to determine the exact shower tray width and depth to fit into your shower area.

2. Consider Your Bathroom Layout

The second thing that should be in your mind when determining the size of a shower tray is your bathroom layout.

The shower trays come in various shapes like rectangular, quadrants, square and more.

You will need to check both size and shape for the proper fitting. That’s not possible unless you know about the layout of the bathroom.

For example, in the case of a small bathroom layout, you may need to prefer a quadrant shower or for larger layouts, a square or rectangular-shaped shower tray may be the right option.

3. Optimal Showering Space

The shower tray size you choose should be spacious enough to allow you to move comfortably during the shower.

You would not want to take a shower in an area that feels too cramped. So, it depends on personal preference as well as the availability of space.

The standard shower space sizes start from 800mm. So, if you don’t lack too much space, then consider increasing your shower space. As a general rule, most bathroom design guidelines recommend at least 900mm × 900mm for comfortable use.

When considering what size shower tray you need for your bathroom, it’s crucial to ensure it complements the space and accommodates your daily routine comfortably. Measure the available area carefully, considering factors like door swing, clearance, and overall layout. Opting for a shower glass door can enhance the aesthetics and functionality, but it’s essential to select a shower tray dimensions that aligns with the door’s dimensions to avoid any fitting issues. A well-matched combination of shower tray and glass door will not only maximize utility but also contribute to the overall appeal of your bathroom.

4. Door Clearance

If you are installing a shower enclosure with a pivot door, then you will need to choose shower tray measurements suitable enough to let the door open easily.

So, consider your shower enclosure size with possible clearance and choose the shower tray size at the same time as your shower enclosure.

For the recessed shower, choose the door size according to the overall available space. Ensuring adequate clearance is particularly important if you are also considering accessible bathroom design for wheelchair users or those with limited mobility.

5. Personal Preferences

Ultimately, the choice of shower tray size should reflect your personal preferences and needs. Consider how you like to shower.

Do you prefer a quick, efficient shower, or do you enjoy a more spacious and luxurious experience? Your preferences will determine the right size for you.

Also, think about the style and design you want for your bathroom. Generally, a larger tray can create a sense of openness, while a smaller one may be cozier.

If you are unsure about the right shower tray size for your bathroom, it is better to consult with a professional, for example a reputable bathroom interior designer like Kitchen & Bathrooms.

They can consider all the factors discussed above and provide some advice on how to proceed with selecting your shower tray.

How to Measure for a Shower Tray

Getting the right shower tray measurements requires careful preparation. Follow these steps for accurate results:

First, clear the area where the shower tray will be installed. Remove any existing fixtures or flooring that might obstruct your measurements.

Measure the width and length of the available space using a steel tape measure for accuracy. Measure at floor level, as walls can be uneven.

Check the floor for level — an uneven floor may require a riser kit or additional work before installing the tray. Take note of the positions of waste pipes, as the shower tray dimensions you choose must accommodate the existing plumbing or allow for rerouting.

Finally, account for any wall panels, tiles, or enclosure frames that will reduce the usable space. Always order the shower tray width that fits within the finished space, not the rough opening.

Conclusion

A shower tray size is usually equal to the overall shower space. You will need to think about various factors ranging from overall bathroom layout, shower tray dimensions, material, and personal preferences when deciding about the shower pan size.

Whether you need a compact 700mm tray for an ensuite or a generous 1800mm walk-in option, understanding the full range of shower tray sizes and shower tray measurements will help you make a confident decision.

We have provided the complete list of sizes and the type of bathroom layout to help you confidently choose the best shower tray for your bathroom. For more architecture and interior design inspiration, explore our other guides on Illustrarch.