½” minimum @ lip and joint. The surface varies due to rock nature with max of 2”
Since it is not very thick, it is also lightweight, which makes installation easy. GenStone is made of a high-density closed-cell polyurethane, which is what makes it so light; it only weighs one to one-and-a-half pounds per square foot.
Unlike real stone or brick, GenStone does not require a mason or a knowledge of handling brick and stone to install. You just need one or two people, some basic tools, and a few hours to install our faux stone and brick veneer.