Essential Bathroom Measurements & Heights Guide

Urszula Mos

When it comes to designing your dream bathroom, the right measurements can make all the difference. Whether you’re a seasoned renovator or a first-time DIYer, knowing the ideal bathroom dimensions will help you create a seamless, functional space that works perfectly for your needs.

From the height of your vanity to the positioning of your showerhead, each bathroom element requires thoughtful consideration to ensure comfort and practicality. In this guide, we’re sharing the must-know bathroom measurements to take your renovation or design project to the next level.

Top 10 Bathroom Measurements You Need to Know

While every bathroom layout is unique, there are several key dimensions that are crucial to most bathroom designs. From standard vanity heights to showerhead placements, these measurements will help you create a streamlined and comfortable bathroom space.

1. Vanity Height

When choosing your bathroom vanity, the ideal height will depend on the type of basin you select. For standard bathroom dimensions in Australia, the top of the basin should sit between 860-880 mm off the floor. If you’re going with an above-counter basin, the vanity height will typically be lower to accommodate the basin’s depth. For built-in sinks, the vanity height can be higher. Consider your basin type to ensure the perfect vanity height for your space.

2. Basin Tap & Mixer Location and Height

The positioning of your basin tap and mixer is vital for ease of use. To ensure comfort when washing your hands, the tap should sit between 60-100 mm above the basin, depending on the shape of the spout.

3. Toilet Roll Holder Positioning

While often overlooked, the toilet roll holder is an essential bathroom element. Position it within easy reach, typically between 600-700 mm from the floor. This height ensures you can easily grab the toilet roll without stretching.

4. Towel Rail Height and Positioning

Towel rails should be installed in a position that’s convenient for use, ideally near the shower or bath. The standard height for towel rails is between 1200-1800 mm from the floor. This range ensures easy access while keeping the towels within reach after a shower or bath.

5. Taps & Mixer Location for Shower

For added convenience, shower taps and mixers should be placed at the entrance of the shower. This way, you can adjust the temperature without stepping into the water. The standard height for shower taps is around 1000 mm off the floor.

6. Shower Head Height

For the best shower experience, the showerhead should be positioned between 1900-2100 mm from the floor. This allows for optimal water flow and comfort, while also aligning with the top of your shower screen for a tidy, aesthetic look. Remember, your height and the needs of your household should also play a role in determining the showerhead height.

7. Shower Niche or Ledge Size

Add functional storage with a shower niche or ledge. The ideal height for a shower ledge is 1200 mm, while the perfect height for a shower niche is typically between 900-1200 mm. Make sure your niche or ledge is placed in a location that’s not too visible from the bathroom entrance if you want to conceal products.

8. Bathtub Niche or Ledge Size

If you have a bathtub, a niche or ledge can make it easier to store your bath essentials. Position the niche or ledge at eye level when sitting in the tub for easy access. This ensures everything you need, from your bath salts to your book, is within reach while you relax.

9. Mirror Height Above Vanity

A mirror above your vanity is essential for both functionality and style. The ideal height for your bathroom mirror is between 1500-1700 mm from the floor, with a 50-200 mm gap between the top of the vanity and the bottom of the mirror.

10. Shower Width Size

Finally, don’t forget to consider the size of your shower. The minimum width for a comfortable shower is 900 mm. If possible, opt for a wider shower for a more luxurious and spacious feel.


Designing a bathroom that meets your needs while staying functional doesn’t have to be a stressful process. Armed with the right measurements, you can create a beautiful, well-organized space that works for you and your family. Use this guide as a foundation, and adapt it to suit your unique preferences and the layout of your home.

Explore Blue Bathware for a wide range of high-quality bathroom products to enhance your renovation. From sleek vanities to stylish showerheads and space-saving towel rails, we offer everything you need to create your dream bathroom. Visit us for inspiration and the perfect finishing touches for your project.