Cultured stone is lighter than natural stone, but the installation of manufactured stone is similar to the installation of natural stone. Cultured stone creates an ornamental accent for outdoor areas but is typically more expensive than natural stone because of the manufacturing process. Properly installed, culture stone can last several decades. Improperly installed with weak or dried out mortar, cultured stone will fall away from the wall. Install stacked stone to cover walls and fences with little preparation and a few masonry tools.