The mining industry spans the globe, as do alumni of the University of Arizona mining and geological engineering program. Many got their feet wet working as interns for Arizona-based mining companies like Freeport-McMoRan.
Weight A 1 Â½ inch thick countertop made of standard concrete has an approximate weight of 18.75 pounds per square foot. (Granite is approximately 18 pounds per square foot.) Standard cabinetry will typically support this weight because itâs distributed over a large area.
This is called the overhang. Standard cabinet frames are 24 inches deep with 3/4 inch to 1 inch thick doors. Most countertops have a 1 inch overhang to make a standard depth of 25 inches. While there are many different materials to use for countertops, most come in a standard thickness of 1 1/2 inches.