What does your market install?
Match local fabricators and cabinets; North America mostly uses 30 mm kitchen tops.
Quartz Thickness: 20 mm vs 30 mm Countertops
Order the thickness your market installs: 30 mm (3 cm) is common for North American kitchen tops, while 20 mm (2 cm) is common in Europe, the UK and for vanity tops and walls.
The short answer
Most quartz countertops are 20 mm or 30 mm thick. A 30 mm top is stiffer and is usually installed straight onto cabinets, while a 20 mm top is lighter and cheaper to ship and is often installed on a support or with a built-up front edge. Auro Quartz supplies both and makes other thicknesses to order.
- 30 mm
- About 72 kg per m² (calculated)
- 20 mm
- About 48 kg per m² (calculated)
- Jumbo slab, 30 mm
- About 370 kg (calculated)
- Jumbo slab, 20 mm
- About 245 kg (calculated)
20 mm and 30 mm quartz compared
| 20 mm (2 cm) | 30 mm (3 cm) | |
|---|---|---|
| Common uses | Vanity tops, walls, European and UK kitchens | North American kitchen tops and islands |
| Weight per m² | About 48 kg | About 72 kg |
| Jumbo slab 3200 × 1600 mm | About 245 kg | About 370 kg |
| Installation | Often on a support or with a built-up edge | Usually straight onto cabinets |
| Shipping | More slabs per container by weight | Fewer slabs per container by weight |
Weights calculated from a typical engineered quartz density of about 2.4 tonnes per m³; actual weights vary by product.
Three questions that decide the thickness
Kitchen, bathroom or wall?
Vanity tops and wall panels are commonly 20 mm; kitchen islands are often 30 mm.
How is the container loaded?
Stone containers fill by weight, so 20 mm slabs fit more square metres per container.
20 mm and 30 mm slabs from one factory
Auro Quartz supplies Jumbo and Standard slabs in 20 mm and 30 mm, makes other thicknesses to order and confirms the thickness of every item in writing.
See edges, finishes and thicknessQuartz slabs and cut-to-size tops from one factory
20GP
Container minimum
Auro Quartz ships from one 20GP container, with colours mixed in the same container.
199
Calacatta designs
Four catalogue collections, from fine grey veins to wide gold veins.
2
Slab formats
Jumbo 3200 × 1600 mm and Standard 3000 × 1400 mm, 20 mm or 30 mm thick.
Cut
To your drawing
Auro Quartz cuts the pieces before shipping and crates them for export.
Quartz thickness: questions
Anything else? Ask Auro Quartz »
What is the standard thickness of quartz countertops?
Quartz countertops are usually 20 mm (2 cm) or 30 mm (3 cm) thick; 30 mm is common for North American kitchen tops.
How much does a quartz slab weigh?
A Jumbo 3200 × 1600 mm quartz slab weighs about 245 kg at 20 mm and about 370 kg at 30 mm, calculated from a typical density of about 2.4 tonnes per m³.
Does Auro Quartz make other thicknesses?
Yes. Auro Quartz supplies 20 mm and 30 mm as standard and makes other thicknesses to order.
Related buying guides
Quartz countertops: pros and cons
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Read the guide »Quartz vs quartzite
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Read the guide »Quartz vs granite
Which surface suits which kitchen, and what changes for a stockist.
Read the guide »Quartz vs marble
Why marble-look quartz outsells marble in busy kitchens.
Read the guide »
Samples & quotes
Get a quote for 20 mm or 30 mm slabs
Tell Auro Quartz the colours, thickness, quantity and destination port. Auro Quartz replies by email or WhatsApp.
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