Established in 1934, OK Coal and Concrete is one of the leading suppliers of ready-mix concrete and related products in Ohio. It provides a range of aggregate and concrete products. The company offers concrete blocks, bricks, mason and concrete sand, gravel and limestone and stone veneers. OK Coal and Concrete also provides various accessories, such as water table sills, row locks, hearthstone and corners. Its showroom provides galvanized culvert, angle iron and expansion joint materials. The company additionally offers concrete and brick tools.