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20mm vs 30mm Engineered Stone — Which Thickness is Right for Your Kitchen?

Published March 1, 2026

20mm vs 30mm Engineered Stone — Which Thickness is Right for Your Kitchen?

When designing your dream kitchen, every detail matters. After choosing the perfect colour for your engineered stone benchtop, the next crucial decision is selecting the right thickness. At Royal Victoria Collection, we offer our entire range in both 20mm and 30mm options, and each has its own distinct advantages.

But first, it’s important to understand that the engineered stone of today is not the same as it was a few years ago. Following a landmark Australian government ban on traditional quartz-based stone — which came into effect on 1 July 2024, making Australia the first country in the world to take this step — our entire collection is now crafted from a safe, sustainable, and high-performance blend of approximately 85% recycled glass and 15% resin. This means you get a beautiful benchtop with complete peace of mind.

So, which thickness is right for you? This guide will break down the differences in aesthetics, cost, and design considerations to help you make an informed choice for your Queensland home.

The Sleek and Modern Choice: 20mm Benchtops

A 20mm benchtop offers a slim, elegant profile that has become increasingly popular in modern and contemporary kitchen design. Its streamlined appearance creates a sense of minimalism and sophistication.

Pros of 20mm BenchtopsCons of 20mm Benchtops
Modern AestheticLess suitable for traditional designs
Cost-EffectiveMay require more support for overhangs
VersatileCan look less substantial in large kitchens

Why Choose a 20mm Benchtop?

The Bold and Luxurious Choice: 30mm Benchtops

A 30mm benchtop provides a more substantial, classic look. Its thickness adds a sense of weight and luxury to the kitchen, making it a statement piece in its own right.

Pros of 30mm BenchtopsCons of 30mm Benchtops
Luxurious AppearanceHigher cost
Greater DurabilityCan overpower smaller kitchens
Ideal for Traditional DesignsLess suited to minimalist aesthetics

Why Choose a 30mm Benchtop?

Making the Right Choice for Your Home

Ultimately, the decision between a 20mm and 30mm benchtop comes down to three key factors:

  1. Your Design Style: Are you aiming for a modern, minimalist look (20mm) or a more classic, luxurious feel (30mm)?
  2. Your Budget: A 20mm benchtop is a more cost-effective option, while a 30mm benchtop is a premium investment.
  3. The Scale of Your Kitchen: In a smaller kitchen, a 20mm benchtop can help create a sense of space, while in a larger kitchen, a 30mm benchtop can make a bold statement.

See the Difference for Yourself

The best way to decide is to see and feel the difference in person. We invite you to visit one of our Royal Victoria Collection showrooms in Rocklea, the Gold Coast, or Brisbane to view our full range of colours in both 20mm and 30mm thicknesses. Our expert team is always on hand to offer advice and help you select the perfect, safe, and sustainable engineered stone benchtop for your project.