Black Bear Mountain Stone stack stone is a profile that features a combination of sizes that creates an authentic appearance. This stone has drastic variations of thickness, depth, and character copied directly from nature. The stacked stone pattern is clean, contemporary and a favorite among designers and architects. Stack stone is a stone veneer product measuring 1" to 2.5" thick and therefore thinner than traditional stone siding for easier, lighter handling. All our manufactured stone veneer products are suitable for interior applications such as stone accent walls or stone fireplaces as well as exterior applications such as stone veneer siding.