How to Measure Your Bathroom Before Choosing Your Tiles

Porcelana Tiles

Sep 28, 2026

How to Measure Your Bathroom Before Choosing Your Tiles

Choosing new bathroom tiles is exciting, but before you can work out how many tiles you need — and how much they may cost — you need to know the approximate size of your bathroom.

If you already have your bathroom measurements, bringing them with you when you visit Porcelana Tiles can help us provide a more direct tile quote when you choose your tiles.

You don't need to be a builder or have professional measuring equipment. With a tape measure, a notepad and a few minutes, you can get the basic measurements we need.

Not confident measuring your bathroom yourself? That's completely fine. Our team can also assist with measuring your bathroom as part of your renovation consultation.

What You Need to Measure Your Bathroom

Before you start, grab:

A tape measure
Pen and paper, or your phone
A calculator
A simple sketch of your bathroom
A second person to help hold the tape measure, if possible

You don't need to draw your bathroom perfectly. A simple floor plan showing the walls, doors, windows, shower, vanity, toilet and bath is enough to help you keep track of your measurements.

Step 1: Measure the Length and Width of Your Bathroom Floor

Start by measuring the overall floor area.

Measure the length of the bathroom from one wall to the opposite wall.

Then measure the width from one side to the other.

Write both measurements down.

For example:

Bathroom length: 2.4m
Bathroom width: 1.8m

To calculate the approximate floor area:

2.4m × 1.8m = 4.32m²

This gives you the approximate floor area of your bathroom.

What if your bathroom isn't a simple rectangle?

Some bathrooms have sections that aren't perfectly square or rectangular.

If this is the case, divide the bathroom into smaller rectangles and measure each section separately.

For example:

Section A: 2m × 1.5m = 3m²
Section B: 1m × 0.8m = 0.8m²

Then add them together:

3m² + 0.8m² = 3.8m²

If you're unsure, don't worry. Bring your measurements and our team can help you work through them.

Step 2: Measure the Wall Height

If you're planning to tile the bathroom walls, you'll also need to know the wall height.

Measure from the finished floor up to the ceiling.

For example:

Wall height: 2.4m

If you're only tiling part of the wall, measure to the height you want the tiles to finish.

For example, you may want:

Full-height wall tiles
Tiles to approximately 1.2m high
Tiles to 1.5m high
Full-height tiles in the shower and a lower tile height elsewhere

If you're not sure which option is right for your bathroom, our team can help you discuss your options when you visit the showroom.

Step 3: Measure Each Wall

Don't assume every wall is the same length.

Measure each wall individually and write the measurements on your sketch.

For example:

Wall A: 2.4m
Wall B: 1.8m
Wall C: 2.4m
Wall D: 1.8m

If your bathroom has a different layout, measure each individual wall.

This is particularly important for bathrooms with:

Niches
Recessed areas
Separate shower areas
Partial walls
Different ceiling heights
Angled walls
Built-in baths

Step 4: Measure the Shower Area

If you're selecting tiles for your shower, measure the shower walls separately.

Measure:

Shower width: ___ m
Shower depth: ___ m
Shower height: ___ m

If the shower has a niche, window or other opening, make a note of it.

A simple sketch can be extremely helpful here.

Step 5: Measure Doors and Windows

If you're calculating the total wall area for tiles, note any areas that won't be tiled.

Measure the approximate size of:

Doors
Windows
Large openings
Existing niches
Other areas where tiles won't be installed

For example:

Window: 1.2m × 0.6m = 0.72m²

This information can help when calculating the approximate amount of wall tile required.

Step 6: Measure Around the Vanity, Bath and Toilet

You don't necessarily need to measure every individual fixture in detail, but it's helpful to note where they are located.

On your sketch, mark:

Vanity
Toilet
Bath
Shower
Door
Windows
Niches
Any unusual areas

This gives our team a better understanding of the bathroom layout when you're selecting your tiles.

Step 7: Take Photos of Your Bathroom

Photos can be just as helpful as measurements.

Before visiting our showroom, take several photos showing:

The entire bathroom
Each wall
The shower
Vanity
Toilet
Bath
Windows
Door
Floor
Any unusual areas or features

If possible, take the photos from different corners of the room.

You can bring the measurements and photos with you when choosing your tiles.

Step 8: Bring Your Measurements When Choosing Your Tiles

Once you have your measurements, bring them with you when you visit Porcelana Tiles.

When you've selected the tile you're interested in, we can use the measurements you've provided to help work out the approximate quantity required and provide a more direct tile quote.

This can make the tile selection process easier because you can get a better idea of the quantity and cost while you're choosing your tiles.

Remember to Allow for Wastage

When purchasing tiles, you generally need to allow for additional tiles beyond the exact calculated area.

Extra tiles can account for:

Cuts
Breakages
Pattern matching
Installation requirements
Future replacements

The amount of additional tile required can vary depending on the tile size, layout and installation pattern.

Our team can help you determine an appropriate quantity based on your measurements and chosen tile.

Bathroom Measurement Checklist

Before coming into the showroom, make sure you have:

☐ Bathroom length
☐ Bathroom width
☐ Ceiling/wall height
☐ Individual wall measurements
☐ Shower measurements
☐ Door measurements
☐ Window measurements
☐ Vanity/bath/toilet locations
☐ Any niches or unusual areas
☐ Photos of the existing bathroom
☐ Your preferred tile style or inspiration

You don't need to have everything perfect. The more information you can provide, the easier it is for us to help.

Want Us to Measure Your Bathroom Instead?

If measuring your bathroom yourself sounds like too much work, you don't have to do it.

If you're planning a full bathroom renovation, Porcelana Tiles can assist with the measuring and consultation process so we can better understand your space and renovation requirements.

This can be particularly helpful when your bathroom has an unusual layout, multiple areas, existing plumbing considerations or a more extensive renovation planned.

Our team can help you move from:

Measure → Choose → Quote → Renovate

all in one process.

Visit Porcelana Tiles to Choose Your Bathroom Tiles

Once you have your measurements, bring them into your local Porcelana Tiles showroom and browse our range of bathroom tiles, tapware and bathroom products.

Whether you're simply replacing your bathroom tiles or planning a complete bathroom renovation, our team can help you understand your options and find products that work together.

Visit us in Geelong or Reservoir and bring your measurements and bathroom photos with you.

If you're planning a complete renovation and would prefer to have your bathroom professionally assessed, you can also book a consultation with our team.

Planning a Bathroom Renovation?

If you're looking for more than just tiles and are planning a complete bathroom renovation, our supply and installation service can help bring the entire project together.

From bathroom tiles and tapware to vanities and installation, we can help you through the process from the initial consultation through to completion.