The Smart Way to Choose Vanity Sizes for Small, Medium & Large Bathrooms

When planning a bathroom renovation or designing a new space, one of the first decisions to make is the size of your vanity. The right choice can influence everything from how spacious the room feels to how much storage you have for everyday essentials. A vanity that’s too small can limit function, while one that’s too large may overwhelm the room.

That’s why most homeowners choose from the standard range of 500mm to 1800mm, which offers options for compact powder rooms, busy family bathrooms, and luxurious master ensuites alike.

By understanding how different sizes work for small, medium, and large spaces, you can find a vanity that’s practical, comfortable, and perfectly suited to your bathroom’s layout.

What Are the Standard Bathroom Vanity Sizes?

Standard bathroom vanity widths typically range from 500mm to 1800mm, and they are grouped into three main categories:

• Small bathrooms: 500-750mm - common options include 500mm, 600mm, 700mm, and 750mm.

• Medium bathrooms: 900-1200mm - popular choices are 900mm, 1000mm, and 1200mm.

• Large bathrooms: 1200-1800mm (often 1200mm double-sink vanities, 1500mm, or 1800mm).

The standard vanity height is around 85cm (usually 80–90cm), though wall-hung vanities can be mounted higher or lower for comfort.

Best Vanity Sizes for Small Bathrooms

Choosing the right vanity for a small bathroom can be tricky. Units in the 500mm to 750mm range strike the balance by providing essential storage while maintaining an open, easy-to-move-around space.

500mm vanity

Best suited for powder rooms, guest bathrooms, or very narrow layouts where every centimetre counts. It provides just enough counter space for hand washing and a few essentials.

600-700mm vanities

These sizes give you slightly more room on the countertop and underneath, making them practical for small apartments or secondary bathrooms that still need everyday storage.

750mm Vanities

The largest of the “small” category, and a go-to choice for compact family bathrooms. It strikes a good balance between storage and space efficiency, often accommodating one sink plus drawers or shelving.

Smart buyer’s tip: For small bathrooms, look for floating or wall-mounted vanities. By lifting the unit off the floor, you create the perception of more space and make cleaning easier. If storage is a priority, choose a model with deep drawers instead of doors - drawers use space more efficiently and keep essentials organised.

In short, vanities under 750mm are about making the most of a limited footprint. If your bathroom is mainly for guests or occasional use, a 500mm or 600mm model may be enough. But for small family bathrooms where storage is non-negotiable, a 750mm vanity is usually the smarter choice.

Best Vanity Sizes for Medium Bathrooms

For medium-sized bathrooms, the challenge is finding a vanity that delivers ample storage and countertop space without overpowering the room. Vanities in the 900mm to 1200mm range are the sweet spot - they offer flexibility in design and functionality, making them popular choices for everyday family use.

900mm Bathroom Vanities

A versatile size for smaller families or couples. They provide enough counter space for two people to share daily essentials without feeling cramped.

1000mm Bathroom Vanities

A step up in storage capacity, this size is great for households that need more drawer and cabinet space but don’t want a unit that dominates the bathroom.

1200mm Bathroom Vanities

Available in both single and double sink options, these vanities work well for busy bathrooms where two people need to use the space at the same time.

Smart buyer’s tip: Medium vanities give you room to experiment with style. Floating designs create a modern, streamlined look, while freestanding cabinets add a more traditional feel. With this size range, you can also incorporate larger mirrors, decorative sinks, or feature lighting to enhance the design.

Vanities between 900mm and 1200mm are the most adaptable. They provide the right balance of storage and counter space for everyday use, making them a smart investment for family bathrooms or shared ensuites.

Best Vanity Sizes for Large Bathrooms

With a large bathroom, you have the space to make your vanity a true statement piece. Vanities between 1200mm and 1800mm not only provide generous storage and countertop space but also open the door to luxury features like double sinks and expansive designs that elevate the entire room.

1200mm double-sink vanities

A popular choice for couples, offering two separate basins while still leaving room for storage underneath. Ideal for busy mornings when more than one person needs the bathroom.

1500mm vanity

A versatile option that combines generous drawer and cabinet space with an elongated countertop. This size is excellent for families or for those who want a balance of practicality and elegance.

1800mm vanities

The ultimate in luxury, these vanities are often the centrepiece of master ensuites. They typically include double sinks, abundant storage, and enough surface space for both daily essentials and decorative touches.

Smart buyer’s tip: In a large bathroom, your vanity doesn’t stand alone - it anchors the room. Pair it with oversized mirrors, dual lighting fixtures, and matching cabinetry to create a cohesive, high-end look. Floating vanities in this size range can also add a modern, hotel-inspired feel.

Vanities from 1200mm to 1800mm are best for households that value both function and luxury. Whether you want the practicality of a double sink or the impact of an 1800mm centrepiece, these larger options make your vanity the highlight of the bathroom.

 

How to Choose the Right Vanity Size

1. Measure your space. 

Use a tape measure to check the width of the wall where the vanity will go, then subtract space for door swings, walkways, and toilet clearance - most experts recommend leaving at least 60–90cm of clear space in front of the vanity for comfortable use.

2. Plan storage needs. 

If you live alone or want a minimalist look, a slim single-sink vanity may be enough. For couples or families, consider wider vanities with drawers and cabinets for towels, toiletries, and cleaning supplies.

3. Match the layout. 

Floating vanities create the illusion of more floor space, while corner vanities maximize otherwise unused areas.

4. Balance style with function. 

A vanity should enhance the design of your bathroom without compromising on everyday usability.

Quick Checklist:

✔ Measure wall width and allow clearance for doors and walking space.
✔ Choose storage depth based on household needs.
✔ Match the size to your bathroom type
✔ Coordinate with mirrors, lighting, and finishes for a complete look.

Final Thoughts

The smart way to choose a vanity size is to match it to your bathroom’s scale: 500–750mm for small spaces, 900–1200mm for medium, and 1200–1800mm for large or luxury ensuites. Measure twice, plan for storage, and you’ll have the peace of mind that comes with knowing your vanity will fit beautifully and function perfectly. Browse our collection of bathroom vanities today to discover the size that suits your space best.