A double bowl splits the workload — wash on one side, rinse or drain on the other, and the second bowl stays free even when dishes stack up. QA Bathroom Warehouse stocks double bowl kitchen sinks in Perth from Oliveri and Seima, in equal-bowl and 1.5-bowl configurations.

Oliveri Santorini black granite 1.5 bowl kitchen sink with pull-out mixer
white fireclay butler kitchen sink

Equal Double vs 1.5 Bowl

Equal double bowls suit households that hand-wash regularly — two full working bowls side by side. A 1.5 bowl keeps one main bowl at full size with a half bowl for rinsing vegetables or standing the drainer basket, and fits a narrower cabinet. Check handing (left or right half bowl) against your dishwasher position.

Cabinet and Plumbing Requirements

Most double bowls need an 800-900mm base cabinet; 1.5 bowls squeeze into 700mm. Twin wastes need a dual-trap connection under the sink — standard kit, but worth flagging to your plumber if you are converting from a single bowl.

stainless steel topmount kitchen sink