Standard concrete block, or "gray block," is widely known as one of the most practical, long-lasting and cost-effective material used in building. Due to its strength, durability, and excellent fire rating, concrete block provides a sensible alternative to many other building materials. We also produce lightweight concrete blocks which are made of expanded aggregate to reduce the density and weight compared to standard concrete blocks. Our Grey blocks, both standard and lightweight, are manufactured at our Jamestown facility.