Is Quartz Countertop Heavier Than Granite?

Granite and quartz are two of the most popular materials for kitchen and bathroom countertops. Many homeowners struggle to decide between them when renovating. An important factor to consider is the weight of each material. So, is quartz heavier than granite?

Overview of Granite and Quartz Countertops

Granite countertops are made from solid slabs of natural stone. The stone is mined from quarries around the world, cut into slabs, polished, and fabricated into countertops. Granite comes in a wide variety of colors and patterns, from solid colors to dramatic veining. It is prized for its unique natural beauty and longevity. However, granite requires periodic sealing to prevent stains.

Quartz countertops are engineered stone made from crushed quartz aggregated with resin and pigments. The mixture is molded into slabs that are cut and polished into countertops. Quartz offers consistent color and pattern options. It is virtually maintenance-free and does not require sealing. While not as unique-looking as natural granite, high-end quartz closely mimics granite and marble looks.

Weight Comparison Between Granite and Quartz

  • Granite is heavier than quartz. On average, granite weighs between 170 to 185 pounds per cubic foot. This can vary slightly depending on the stone’s density and mineral composition.
  • Quartz weighs about 145 to 155 pounds per cubic foot on average. It’s engineered nature allows the weight to remain relatively consistent between varieties.
  • In general, a 30 square foot granite countertop weighs between 450 to 500 pounds. A quartz countertop of the same size weighs approximately 350 to 375 pounds.
  • So granite weighs about 20 to 30% more than quartz per square foot.

Reasons for the Weight Difference

There are a few reasons why granite is heavier than quartz:

  • Granite is solid natural stone, while quartz is an engineered material containing only about 90% ground quartz particles.
  • Natural granite is denser than a man-made mixture of quartz and resin. Denser materials weigh more per cubic foot.
  • Quartz contains air pockets that form during manufacturing, making it slightly less dense than granite. Granite’s natural formation is more compact.
  • Binders and pigments added to quartz lighten the overall weight compared to pure natural granite.
  • Thickness can vary. Granite slabs tend to be thicker than quartz slabs in general. More thickness equals more weight.

Does the Weight Difference Matter?

The weight difference between granite and quartz countertops is notable but often not a major factor. Here are some considerations:

  • A heavier countertop provides more stability and resistance to movement or shifting. This can be beneficial for tasks like rolling dough. Granite’s extra weight provides slightly more security.
  • The underlying cabinets and supports must be robust enough to handle the weight of either material. Standard kitchen construction can accommodate granite or quartz safely.
  • Professional installation is recommended for either option to ensure proper support.
  • Weight differences are negligible for small pieces like bathroom vanities. Larger kitchen countertops show the gap more.
  • Those with quartz may install thicker slabs (3 cm) to increase stability, while granite is often installed at 2 cm.
  • Overall, both materials are durable, functional, and safe when installed correctly. The average weight difference does not impact performance.

Factors Beyond Weight to Consider

While granite weighs more than quartz, other factors often take priority in choosing between them:

  • Appearance – Granite offers unique natural patterns. Quartz provides uniform colors and convincing stone looks.
  • Maintenance – Quartz never needs sealing. Granite requires occasional sealing.
  • Durability – Both are very durable options able to withstand years of use.
  • Cost – Quartz is often more affordable than natural granite of similar grades.
  • Use – For heavy prep tasks, granite’s weight provides stability. Quartz works well for most kitchen uses.

In summary, granite does weigh more than quartz, but not so much as to make an enormous difference in home use. Focus on appearance, maintenance, and budget when selecting between the two countertop materials. Proper installation is key to handle the weight of either in your home safely.

Frequently Asked Questions About Granite and Quartz Weight

Is a thicker quartz countertop heavier than granite?

It’s possible for a 3 cm thick quartz slab to weigh more than a 2 cm granite piece, but this depends on the exact materials. In general, granite still weighs more per square foot at equal thickness.

Does the thickness of the countertop affect the weight?

Yes, a thicker countertop weighs more than a thinner one for the same material. Granite and quartz are typically 1.2 to 2 cm thick for countertops. Increasing to a 3 cm thickness substantially increases the weight.

Do thicker countertops last longer?

Not necessarily. A standard 2 cm slab of either granite or quartz is extremely durable. The minor stability gained from a thicker piece often does not justify the extra cost, weight, and fabrication work. Proper installation for a 2 cm slab prevents issues.

What is the heaviest kitchen countertop material?

Granite is generally the heaviest common countertop material, followed by quartz and marbles. There are a few alternatives like soapstone and concrete that may exceed granite, but these are less frequently used.

Does a heavier countertop mean higher quality?

No, weight does not directly correlate to quality. Well-made quartz countertops often outperform granite in measures like stain resistance and durability. Focus on factors like appearance, maintenance, and performance rather than just weight.

Can standard kitchen cabinets support granite counters?

In most cases, yes. Sufficiently constructed cabinets and supports can handle granite countertops even though they are heavy. Quartz puts less strain on the cabinets. Professional installers assess the structure to be sure it can support the weight safely.


Granite undisputedly weighs more per square foot than quartz. But when it comes to choosing a countertop material, weight should be just one of many considerations. Both granite and quartz make excellent, durable countertops when installed properly. Consider the appearance, maintenance, cost, and performance characteristics you want when deciding between these two great options for your kitchen or bath surfaces.