Bathroom vanity sizes: how to choose the right width, depth and height

The vanity is often the biggest piece of furniture in a bathroom, and the one people most often get the size wrong. Too big and the room feels cramped and the door catches. Too small and you lose bench space and storage you will miss every morning. This guide covers the standard sizes, how to measure, and the clearances that make a vanity comfortable to use.
Common vanity widths
Most vanities sold in Australia come in a set of standard widths. Exact sizes vary by brand and range, so always confirm on the product page, but as a guide:
- 600mm or less. Powder rooms, small ensuites and laundries. Enough for a basin and a little bench space.
- 750mm. A popular size for small bathrooms that still need some drawer storage.
- 900mm. A comfortable single basin vanity for most main bathrooms.
- 1200mm. Generous bench space with one basin, or a compact double basin layout.
- 1500mm to 1800mm. Double basin vanities for busy family bathrooms and larger ensuites.
Browse all vanities or filter by size, for example the Aulic Moreno 1200mm or the Otti Byron Fluted 900mm.
Depth: the measurement people forget
Standard vanity depths sit around 450mm to 500mm. In a narrow bathroom, an extra 100mm of depth can be the difference between a comfortable walkway and bumping your hip every day. Many ranges offer slim or space saver options at around 350mm to 400mm deep. See space saver vanities.
If you choose a slim vanity, check the basin. A deep vessel basin on a shallow cabinet can leave very little room for the mixer behind it, so look at the full specification sheet.
Height and basin type
The comfortable height for most adults is around 850mm to 900mm to the top of the basin. The basin type changes the total height:
- Above counter basins sit on top of the benchtop, so the cabinet itself is usually mounted lower. See above counter basins.
- Integrated tops and semi recessed basins keep the rim close to the bench height.
- Wall hung vanities let you set the height to suit your household, which is a real advantage for tall families.
Read more about basin choices in our basin guide.
How to measure for a vanity
- Measure the wall width where the vanity will go, from wall to wall or from wall to the shower screen or toilet.
- Measure the room depth from the back wall to the nearest obstacle in front, such as the opposite wall, bath or door swing.
- Note the door swing. A door that opens into the room needs clear space so it does not hit the vanity or its handles.
- Mark existing plumbing. Note the height and position of the waste and water points. Moving them is possible during a renovation, but it is a cost to plan for.
- Check windows and power points. A tall mirror or shaving cabinet needs wall space above the vanity.
Take photos and bring the measurements to the showroom. If you would rather not measure yourself, book a free measure with our team through the quote request form.
Clearances that make a bathroom comfortable
Building rules and your designer or builder have the final say, but these working guides help:
- Leave clear floor space in front of the vanity so you can stand, bend and open the drawers fully. Around 700mm to 800mm feels comfortable for most people.
- Allow some space between the vanity and a toilet so knees and elbows are not crowded.
- If the vanity sits beside a shower, check the screen door does not swing into the vanity or its handles.
Single or double basin?
A double basin is great when two people get ready at the same time, but it uses bench space. Below about 1200mm, two basins usually leave no room for anything else. Many couples are happier with a 1200mm vanity, one basin and lots of bench space. If you do go double, check each basin gets its own tap hole or wall mixer, and that the plumbing can split to both.
Storage and style
Drawers are easier to use than doors because you can see everything from above, but they need to be shaped around the waste pipe. Check the drawer layout on the product page. For finish, timber looks such as oak warm up white tiled rooms, while matte white and fluted fronts give a softer, coastal feel. You can compare fronts at either showroom, and our guide to wall hung vs freestanding vanities covers mounting styles.
Common questions
What is the most common vanity width?
For a main bathroom, 900mm and 1200mm are the most popular widths. Small ensuites and powder rooms often use 600mm or 750mm, and double basin vanities usually start around 1200mm and go up to 1800mm.
How deep should a vanity be in a small bathroom?
Standard vanities are around 450mm to 500mm deep. In a narrow room, a space saver vanity at around 350mm to 400mm deep can free up valuable walkway space.
Can you measure my bathroom for me?
Yes. We offer a free measure, and we can quote installation by our qualified trades at the same time if you would like it.
Visit us or shop online
See the range in person at our showrooms: Geelong at 35A Ryrie St, Geelong VIC 3220, phone (03) 5223 2765, and Reservoir at 214 Broadway, Reservoir VIC 3073, phone (03) 9867 5051. Both are open Monday to Friday 9:30am to 5:00pm, Saturday 9:30am to 3:00pm, and Sunday by appointment only.
Planning a renovation? Request a quote and a free measure, and ask us to include installation by our qualified trades if you would like it quoted. Prefer to shop from home? Order online with Australia-wide delivery, or pick up from either showroom, usually ready in 2 to 4 days.







