We have engineered our Stone Cast products to be among the strongest, most durable architectural concrete products on the market. All of our cast stone concrete pavers, architectural columns, wall coping, balustrades, fireplace mantels, and Stone Cast concrete benches, decorative fountains, and assorted concrete planters are constructed to exceed the ASTM (American Society for Testing of Materials) requirements for strength, durability, and the non-absorption of water for architectural concrete products.