Last updated: 2026-09-25 (Australia/Sydney) · Written and reviewed by the Darrah Opens team, Australian home & outdoor specialists.

Quick answer: Measure the full wall run and subtract clearance for doors, the toilet and the shower screen. A 600 mm vanity suits most small ensuites and powder rooms, 750–900 mm suits a typical family bathroom, and 1200 mm is the usual starting point for a double basin. Check bench depth and plumbing positions before you order.

Compare bathroom vanity sizes for Australian bathrooms and ensuites — width, mount style and basin layout — this Darrah Opens buying guide.

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1. Measure wall run before you shortlist widths

Tape the clear wall between returns, doors and the toilet. Deduct splashback returns and allow door swing. Match listed widths (600 / 750 / 900 / 1200 mm) to that clear span — do not force a wider cabinet into a tight ensuite.

2. Wall-hung, floor-standing and plumbing access

Wall-hung suits compact wet areas when studs can take the load. Floor cabinets hide traps and cisterns. Confirm waste position and hot/cold rough-in against the cabinet cut-outs before tiling is finished.

3. Basin count, tapware and bench depth

Single basins maximise prep space; doubles need width and two mixers. Vessel tops need taller spouts; undermounts prefer flatter tops. Check basin depth so you are not cramped against the mirror.

4. Storage, soft-close and finish

Drawers beat deep cupboards for daily use. Soft-close hardware lasts longer in humid bathrooms. Choose moisture-resistant finishes and seal cut edges after install.

5. Active product examples

6. Collection hub

Browse the collection: https://www.darrahopens.com.au/collections/furniture-bathroom (Furniture > Bathroom).

Vanity width at a glance (600–1200 mm)

  • 600 mm: powder rooms, small ensuites and rentals. Usually single basin with limited bench space.
  • 750 mm: a good middle size when 900 mm is too tight. Room for a single basin plus some bench.
  • 900 mm: popular for family bathrooms. More drawer storage and a wider bench either side of the basin.
  • 1200 mm: the usual minimum for two basins, or one basin with generous bench space.

Allow about 450–500 mm deep for a standard vanity, or look at slimline models if the room is narrow. Leave enough space in front for drawers to open fully while someone stands at the basin.

Frequently asked questions (2026)

What vanity width suits a typical Australian ensuite?

Common widths are 600 mm, 750 mm, 900 mm and 1200 mm. Measure the clear wall between returns, doors and the toilet, then leave splashback and door-swing clearance. Many ensuites land on 750–900 mm; main bathrooms with more wall run often take 1200 mm+.

Wall-hung vs floor-standing vanity?

Wall-hung units free floor space for cleaning and suit compact wet areas when studs can take the load. Floor-standing cabinets hide plumbing and often offer more cupboard volume. Confirm waste and hot/cold rough-in against the cabinet cut-outs before tiling finishes.

Single basin or double?

Double basins usually need about 1200 mm+ of width and two tap sets. Couples sharing a main bathroom often prefer doubles; ensuites usually stay single to keep bench space for grooming.

How do basin type and tapware affect height?

Undermount and integrated basins clean easily; vessel basins need taller tapware and splash protection. Leave enough height under mirrors and cabinets for the spout and basin rim.

What storage layout works best?

Soft-close drawers beat deep cupboards for everyday access. Check trap and waste positions so drawers clear plumbing, and choose moisture-resistant finishes for humid Australian bathrooms.

What is the most common vanity size in Australia?

600 mm and 900 mm are the most common widths. 600 mm suits smaller rooms and 900 mm suits most family bathrooms.

Is 1200 mm wide enough for a double vanity?

Yes, 1200 mm is generally the smallest width that fits two basins comfortably. For more elbow room, look at 1500 mm or larger.

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