Generally speaking commercial grade granite has a lot of soft minerals dispersed throughout and less color variation than higher quality cuts of granite.
What is higher grade than granite.
Low grade granite referred to as commercial or second choice has excess soft minerals mixed into the stone and less color variation than higher rated products.
There are generally three levels of granite which include commercial builder grade granite mid grade granite and high quality granite.
Entry level granite tends to be very uniform in colors and pattern and is often sold in thinner slabs of only about 3 8ths of an inch thick.
Mid grade granite features clear.
Mid grade granite is often identifiable by its clear colors and more elaborate patterns but it doesn t have the same unique qualities as more high end cuts.
In addition to durability thicker granite provides a higher quality and more substantial look than that of thinner granite.
The highest quality granite.
Low grade granite is typically less than inch thick and often requires a piece of plywood backing to provide additional strength.
Granite is given its grade based on the retailer s standards.