The weight of a granite countertop can vary depending on its size, thickness, and density of the specific granite slab. On average, granite weighs between 12 to 25 pounds per square foot (60 to 125 kilograms per square meter).
To give you a rough estimate, here's an example:
Assuming a standard kitchen countertop size of 25 square feet (2.3 square meters) and an average weight of 18 pounds per square foot (90 kilograms per square meter), the total weight of the granite countertop would be approximately 450 pounds (205 kilograms).
It's worth noting that these figures are just averages, and the weight can differ based on the factors mentioned above. Additionally, the weight can increase if the granite countertop has additional features like a built-in sink or decorative elements.
When installing granite countertops, it's crucial to ensure that the supporting cabinets and structures can handle the weight of the countertop. Professional installation is recommended to guarantee the proper handling and installation of heavy granite slabs.