Quartz countertops are an extremely popular choice for kitchen and bathroom remodeling projects. Compared to natural stone, quartz is non-porous, resistant to scratches, stains, and heat. It is also available in a wide variety of colors and patterns. When selecting quartz for your countertops, one important consideration is the thickness. Here is an in-depth look at what is the best thickness for quartz countertops.
How Thick Are Quartz Countertops Usually?
The standard thickness for quartz slabs is 3/4 inch (1.9 cm). However, quartz can be fabricated at a range of thicknesses:
- 3/4 inch (1.9 cm) – This is the standard thickness and the most common choice for quartz countertops. It provides an adequate balance of durability and affordability.
- 1 inch (2.5 cm) – A step up in thickness, 1 inch quartz is 20-30% heavier than 3/4 inch. It’s more resistant to cracks and impact damage.
- 1 1/4 inch (3.2 cm) – At this thickness, quartz is exceptionally sturdy and resilient. It’s the best choice for heavy usage areas.
- 2 cm (0.8 inch) – A thinner and more affordable option sometimes used for vertical applications like backsplashes. Not ideal for horizontal countertops.
What Are the Benefits of Thicker Quartz?
Choosing a thicker slab of quartz for your countertops comes with several advantages:
- Increased durability – Thicker quartz can withstand more weight, force, and daily wear-and-tear without cracking or chipping. Making it an ideal choice for heavy usage areas.
- Boosted stain and scratch resistance – With more material, stains have a harder time seeping in. Thicker quartz also better resists cuts and scratches.
- Less chance of warping or distortion – Thinner quartz is more susceptible to warping from improper installation or heat. A thicker slab keeps its shape better.
- Higher levels of vibrancy – Thicker slabs tend to have deeper, richer colors and patterns. The added depth enhances the appearance.
- More stability – The added weight and density of thicker quartz make the countertop feel more solid and stable. Less chance of shifting or movement.
What Are the Downsides to Thicker Quartz?
Despite the benefits, thicker quartz slabs also come with a few drawbacks:
- Increased cost – Since more material is used, thicker quartz costs more. Going from 3/4 to 1 1/4 inch could add $10-$15 per square foot.
- Weight – The thicker the slab, the heavier it becomes. Thick slabs require extra care when handling and installing to avoid cracks.
- Limited design options – Not all colors, patterns, and styles come in thicker options. It limits the selection.
- May require cabinet modification – Overhangs may need added support to prevent cracking under the weight.
What is the Best Thickness for Different Uses?
The ideal quartz thickness depends on how you plan to use the space:
- Kitchen counters – 3/4 inch is standard, 1 inch offers more durability for heavy prep areas.
- Kitchen islands – Go with 1 inch or 1 1/4 inch for optimum resilience under heavier use.
- Bathroom vanities – 3/4 inch provides reliable performance, 1 inch for a minor durability boost.
- Bars & wet areas – 1 inch thickness can better withstand spills, moisture, and use.
- Backsplashes – Thinner 3/8 or 1/2 inch quartz is common, provides sleek visual appeal.
Key Considerations When Choosing Thickness
Keep the following in mind when deciding the right quartz thickness:
- Usage – Will the area experience heavy daily use? More thickness provides extra durability.
- Overhangs – Long spans without underlying cabinet support require thicker quartz to prevent cracking.
- Appearance – Do you prefer the richer, deeper colors and patterns in thick slabs?
- Budget – Thicker quartz costs $25-$50 more per square foot. Factor in the price difference.
- Installation – Ensure your countertop installer can properly handle and seam thicker slabs.
Conclusion
While 3/4 inch is considered the standard, thicker quartz countertops provide enhanced durability. For heavy usage areas like kitchen islands, a 1 inch thickness is ideal. High traffic kitchen counters also benefit from going slightly thicker. The extra resilience lasts for decades and helps prevent cracks, chips, and damage over time. However, thicker quartz comes at a higher price point. Determine the right balance of thickness, cost, and performance for your specific needs.
Here are some frequently asked questions about quartz countertop thickness:
Is 3/4 inch quartz thick enough?
For most applications, a 3/4 inch quartz provides adequate strength and durability at a reasonable cost. It is the most common choice. However, go with 1 inch or more for heavy prep areas.
What thickness can quartz countertops span unsupported?
Quartz should not span more than 10-12 inches without underlying support. For longer spans up to 20 inches, go with a 1 1/4 inch minimum thickness. Proper reinforcement is critical.
Does quartz thickness affect appearance?
Yes, thicker slabs showcase more vibrant colors and deeper visual patterns. The added depth enhances the aesthetics.
Does it cost more to get thicker quartz?
Yes, thicker quartz costs $10-$15 more per square foot. The exact upcharge depends on the fabricator. But increased thickness definitely comes at an added price.
Is 2 cm too thin for a kitchen countertop?
Yes, 2 cm (0.8 inch) is too thin for a kitchen countertop. It would be prone to cracking or breaking under any impact or force. At least 3/4 inch is recommended, with 1 inch being ideal for heavy use.