Planning a Bathroom Vanity: Sizes and Layout

Measure the wall and route through the room

Record the available wall width, the positions of doors and fixtures, and the route people need to use around the vanity. Include the door swing and access to nearby fittings. Measure the actual space rather than choosing a vanity by its nominal label, because a product’s stated width may differ slightly from its physical measurement.

Choose a width that suits the space

The Australian vanity guide lists common widths of 600, 750, 900, 1200, 1500 and 1800mm, as well as compact 400–500mm options. These are examples from the guide, not a guarantee that a particular vanity will fit. Check the product’s actual external width and compare it with the wall, adjacent fittings and required access. A wider vanity may provide more storage or basin space, while a compact option may suit a smaller room.

Check the depth against the room

The guide describes around 450–550mm as a typical vanity depth and notes that slimline products under 460mm can suit powder rooms. The right choice depends on the room and the product. Check how far the vanity projects into the space and whether the basin, tap and doors remain comfortable to use. Include any handles or overhanging top when considering the overall projection.

Choose the basin and top together

The basin affects the usable surface and the finished arrangement. An above-counter basin adds its own height above the bench, so use the basin’s product information when planning the cabinet and top. Confirm where the tap will sit and that it works with the basin. Review the full combination of cabinet, top, basin and tap rather than selecting each item independently.

Decide how the vanity will be mounted

The source guide distinguishes floor-standing and wall-hung products and notes that product choice affects the installed position. Compare the product’s own instructions with the room and the people using it. Where accessibility requirements apply, check the relevant project requirements with a qualified professional. Ask your installer to confirm fixing, services and clear access for the chosen unit.

Plan storage around daily use

Decide what needs to be stored in the vanity, then consider drawers, cupboards or open space accordingly. Check that drawers and doors can open without striking other fixtures or blocking the route through the room. Keep items used regularly easy to reach. The internal arrangement should work with the basin plumbing and the actual products selected.

Check the complete layout

Place the vanity in the room plan alongside the basin, tap, doors and nearby fixtures. Confirm actual product widths and depths, the direction of opening drawers and doors, and the approach space. Do not rely only on nominal dimensions or a generic product category. Review the finished arrangement with your installer before work begins.

Use the guide and confirm details

The Australian vanity sizes guide covers common widths and depths, explains how nominal sizes can differ from actual product dimensions, and discusses installed height considerations. Use the specific product information for the vanity and basin you select. You can try it free in 3D to explore the room arrangement, then confirm the finished details with your installer.

Coordinate the vanity with the rest of the room

A vanity is only one part of the bathroom layout. Check how it relates to the door, shower or bath, basin tap and other fittings. Make sure the vanity does not interrupt the route through the room and that doors or drawers can open as intended. Confirm service positions and fixing requirements with your installer before choosing the final cabinet. Product information should cover the actual external dimensions and basin arrangement. Comparing those details together makes it easier to spot a mismatch before the room is ready for installation.

Read the matching planning guide for more detail.