Wet Rooms – What Is The Minimum Size

One of the most frequently asked questions we get about Australian wet room renovations is how small of a space do you need to make a wet room work. What is the minimum space requirements for a wet room and what is the smallest a wet room can be?

Wet Room Smallest Practical Bathroom

There are a lot of interruptions of a wet room I will focus more on a traditional Australian wet room which is vanity, screen and bath. When it comes to the all on the same wall wet room I call it, where all your items are located on one wall the minimum size you need for this wet room is ideally 2500mm Long (Vanity Wall) x 1550mm (Often Window Wall).

Below are two examples of this minimum wet room spacing which uses 750mm Vanity, 900mm Shower Space With 50mm Gap Between Vanity and Shower and 800mm for the bath space.

Minimum Wet Room Spacing
Minimum Wet Room Spacing
Minimum Wet Room Sizing Australia

Ideally you want to have no smaller then a 750mm vanity in your wet room, you can make it work under that size you just have to get creative, smaller wet rooms, or the smallest you can really do a wet room and make it look nice with the all on one wall which is what I recommend is the 2300mm mark using a 600mm vanity. You can make the shower space 800mm in width if you really wanted which is 100mm under the standard Australian shower space size but because it has no door and a bath is only knee height it wont feel that cramped.

We love to help at small bathroom renovations Perth so if you do have any questions just drop us a email or a comment below 🙂

For more great Australian wet room room advice CLICK THE IMAGES BELOW

It’s important to note that all our advice is general in nature and all bathrooms are unique so always speak to your local qualified tradesman for the best advice. If you are looking for a bathroom renovation quote and live in Perth, Western Australia just email us at smallbathroomrenovations@gmail.com

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Leave a comment below about your experiences with wet rooms  in the shower area or are thinking about.


  1. Hi there. I love your designs. Is a wet room bathroom possible with a 9 foot by 6 foot bathroom? would love to see a design from you for this space (no window). Many thanks!

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