What Thickness Does Quartz Countertops Come In?

Quartz countertops are an increasingly popular option for kitchen and bathroom remodeling projects. With their durability, low maintenance, and customizability, it’s easy to see why quartz has become a top choice for homeowners. One question that often comes up when selecting quartz countertops is what thickness options are available. Here is an overview of the common quartz countertop thicknesses and what thickness may work best for your space.

Standard Thicknesses for Quartz Countertops

Quartz countertops are available in three standard thicknesses:

3/4 Inch

This is the minimum recommended thickness for quartz countertops. At 3/4 inch thick, quartz provides an affordable option that is durable enough for most kitchen and bathroom applications. A 3/4 inch quartz countertop can span up to 36 inches between supports. This thickness works well for remodeling projects where you want to replace an existing laminate or tile countertop without making major changes to your cabinetry or supports.

1 1/4 Inch

A 1 1/4 inch quartz countertop is considered the standard thickness in most situations. At this thickness, quartz counters can span up to 42 inches between supports. This provides enough strength for standard depth countertops without requiring extra reinforcements. 1 1/4 inch offers a substantial visual look and feels luxurious underhand. It is the most commonly selected thickness for quartz countertops.

2 Centimeters (Approximately 3/4 Inch)

A 2 cm or 3/4 inch thick quartz countertop provides an affordable option that is durable enough for most applications. At this thickness, quartz can span up to 36 inches between supports. This is a great choice for remodeling projects where you want to replace your current countertop without making major changes to your cabinetry. It offers minimal thickness while maintaining strength.

3 Centimeters (Approximately 1 1/4 Inch)

3 cm or 1 1/4 inch is the most popular thickness for quartz counters. This thickness can span 42 inches between supports, providing ample strength for standard depth countertops in most kitchens and baths. The 1 1/4 inch thickness offers a substantial look and feel that is preferred by many homeowners. It is the best balance of strength and cost.

Factors to Consider When Selecting Countertop Thickness

When choosing the right thickness for your quartz countertop, keep the following factors in mind:

  • Span distance between supports: Consider the size and layout of your cabinets. Measure the distance between the supports, such as walls, cabinets, or braces. A longer span distance may require a thicker countertop.
  • Overhang length: The overhang refers to the part of the countertop that extends beyond the cabinet or support. Longer overhangs need a thicker countertop to avoid sagging over time. Standard overhangs are usually 10-12 inches.
  • Functional use: Will your countertop need to support heavy use or withstand hot items? Kitchen countertops usually need to be thicker than bathroom vanity tops. High-traffic kitchens and baker’s kitchens may require thicker quartz for durability.
  • Aesthetic goals: The thickness of the countertop impacts its visual look and feel. Thicker quartz comes across as more premium and substantial.
  • Budget: Thicker quartz costs more due to requiring more materials. Decide if the added cost is worth the enhanced durability and appearance.
  • Installation method: Your countertop fabricator may recommend a certain thickness based on how your new countertop will be anchored and supported.

Quartz Thickness Recommendations

Here are some general guidelines to consider for quartz countertop thickness:

  • Kitchen countertops should be at least 1 1/4 inches thick.
  • Bathroom vanity tops can get away with using 3/4 inch quartz.
  • Quartz counters with a span greater than 42 inches should be 1 1/4 inch or thicker.
  • Long overhangs exceeding 12 inches should have a thicker quartz countertop.
  • 3cm or 1 1/4 inch quartz provides the best durability for most situations.

Ultimately, the ideal quartz countertop thickness depends on your specific kitchen or bath layout, functional needs, and style preferences. Discuss your project with a professional countertop fabricator to determine what thickness they recommend. With the right thickness selected, a quartz countertop will provide long-lasting beauty and enjoyment for your home.

Frequently Asked Questions About Quartz Countertop Thicknesses

What is the standard thickness for a quartz kitchen countertop?

The standard thickness for a quartz kitchen countertop is 1 1/4 inches. This thickness provides adequate strength and durability for most kitchens while keeping costs reasonable.

Is 3/4 inch quartz thick enough for a bathroom vanity?

Yes, 3/4 inch quartz provides sufficient thickness and durability for most bathroom vanity applications. The shorter span length of bathroom vanities allows using thinner quartz than a wider kitchen countertop.

Should I get a thicker quartz countertop if I plan for a longer overhang?

It is advisable to get a thicker quartz countertop if you plan for a longer overhang beyond the standard 10-12 inches. The additional thickness helps support the weight and prevent sagging over time. Most experts recommend a 1 1/4 inch minimum thickness for longer overhangs.

If I have a quartz backsplash, should it be the same thickness as the countertop?

It is not essential for the backsplash to be the same thickness as the countertop. Many backsplashes use 3/4 inch quartz, even when paired with thicker countertops. This helps reduce costs.

Can a 2cm or 3/4 inch quartz countertop be used for kitchen counters?

While possible, 3/4 inch quartz is not ideal for larger kitchen countertops, especially those with longer spans between supports. It is best to use 1 1/4 inch or thicker quartz for kitchen counters to prevent sagging or cracking over time.


When selecting a quartz countertop, taking the time to consider the thickness needed for your specific project will ensure you get the best results. A quartz fabricator can help advise you on the right thickness. Factors like span length, overhangs, and functional use should influence your decision. With so many thickness options available, you can find the perfect quartz countertop thickness to suit your needs and budget. Taking the time to select the right thickness will help your new quartz counters perform well for years to come.