How Thick Are Quartz Countertops in Inches?

Quartz countertops are a popular choice for kitchen and bathroom remodeling projects due to their durability, low maintenance, and stylish appearance. When selecting quartz countertops, one important consideration is the thickness. Here is an overview of the standard quartz countertop thicknesses in inches and factors to consider when choosing the right thickness for your needs.

Standard Thicknesses for Quartz Countertops

The most common thicknesses for quartz countertops are:

  • 3/4 inch
  • 1 1/4 inches
  • 1 1/2 inches
  • 2 inches

3/4 inch is the minimum recommended thickness for quartz countertops in residential settings. This thin profile allows for a lightweight feel and works well when you need to conserve space. However, 3/4 inch slabs are not the most durable choice for high-traffic areas.

1 1/4 inches offers a balance of aesthetics and functionality. This thickness provides enough heft for good support but maintains a streamlined appearance. 1 1/4 inch quartz countertops are sufficient for most kitchen and bathroom environments.

1 1/2 inches is considered the standard thickness for quartz countertops today. At 1 1/2 inches thick, these slabs offer enhanced strength and durability compared to thinner options. This thickness works well for busy kitchens and bathrooms.

2 inch quartz countertops provide maximum sturdiness and support. The added thickness makes these countertops well-suited to handle heavy use without sagging or cracking. 2 inch slabs are also less prone to damage from impact. This extra-thick profile is ideal for commercial settings.

Factors to Consider When Choosing Thickness

When selecting the right thickness for your quartz countertop, keep the following considerations in mind:

  • Usage level – If the area will endure heavy day-to-day use, go with a thicker profile for added durability. High traffic kitchens and laundry rooms benefit from 1 1/2 inch or thicker slabs.
  • Span length – Long spans between supports require a thicker slab to prevent bending or sagging over time. Go with 1 1/4 inch or thicker for spans over 2 feet.
  • Overhangs – Increased thickness helps provide needed support for countertop overhangs on kitchen islands or bathroom vanities. 1 1/2 inch is recommended for overhangs up to 6 inches.
  • Appearance – Thinner quartz profiles have a lighter, more delicate aesthetic. If you prefer this streamlined look, 3/4 inch or 1 1/4 inch slabs are ideal.
  • Weight – Thicker quartz slabs weigh more and may require added reinforcement of the cabinetry. This is especially true for 2 inch thick countertops.
  • Budget – As you go up in thickness, quartz countertops become more expensive due to increased materials and more intricate installations.

How Thick Are Quartz Countertops in Inches Frequently Asked Questions

How thick should quartz countertops be for a kitchen?

For kitchen countertops, 1 1/4 or 1 1/2 inches are recommended thicknesses. This provides the right balance of strength and streamlined appearance for everyday use. Avoid less than 1 inch thick for kitchen installs.

Are 3/4 inch quartz countertops too thin?

3/4 inch quartz countertops are quite thin. Although cost effective, they are best suited to low traffic areas like bathrooms, laundry rooms, and bar areas. For heavy use zones like kitchens, go with at least 1 1/4 inch for better durability.

Should I get 1 1/4 or 1 1/2 inch quartz?

While both 1 1/4 inch and 1 1/2 inch profiles work well for most residential settings, the 1 1/2 inch provides some added sturdiness for busy kitchens and baths. If budget allows, 1 1/2 inch is the ideal thickness for quartz countertops.

Is 2 inch quartz too thick?

Two inch thick quartz is on the thicker end for residential use. Although extremely durable, 2 inch slabs are heavy, more expensive, and offer minimal advantage over 1 1/2 inch in typical homes. Reserve 2 inch thickness for commercial projects instead.

Can quartz countertops be cut to size?

Yes, quartz slabs can be cut down to accommodate the specific measurements of your space during fabrication and installation. Your installer will customize the sizing while maintaining the original thickness of the slab.

Do you need extra support for thicker quartz?

In some cases, the weight of thicker slabs does require reinforced cabinetry or special brackets for added support. Discuss options with your contractor if choosing 1 1/2 inch or thicker countertops.


When selecting quartz countertops, take time to consider the right thickness for your particular space. Measure traffic patterns, spans, overhangs, and structural support to help inform your decision. Although thicker quartz is more robust, balance added durability with your budget and aesthetic preferences. In most kitchens and bathrooms, 1 1/4 or 1 1/2 inch slabs provide the ideal compromise of strength and streamlined look. Consult a countertop specialist if unsure what thickness is best for your upcoming project. With some forethought on thickness, you can enjoy durable, low-maintenance quartz countertops that will last for years to come.