Introducing InterlockingRock® BLOCKS by modularArts®. Stacked along with standard steel studs at 24" centers, they create fully dimensional, double-sided, rock walls. Our proprietary InterlockingRock® feature precisely aligns all sides for super fast installation. And as with all our products, you can breathe easy —blocks are composed of cast rock with a plant-based foam core, for healthy, fire-safe walls.
U.S. Patent 8,375,665