R.W. Sidley is a PCI Certified prime manufacturer of architectural and structural precast concrete components. Parking garages, sports arenas, office buildings and commercial buildings are just some of the many types of structures Sidley Precast provides. In fact, the company not only manufactures, but also transports and erects these precast structures. R.W. Sidley was established in 1933 as a mining and manufacturing company. Since then it has continued to build its company through the development of high quality products derived from its original core products of silica sand and bank gravel. As a full service supplier R.W. Sidley manufactures and supplies bulk aggregates, industrial minerals, ready-mix concrete, masonry block products, structural and architectural precast components, and building supplies. The company is headquartered in Thompson, Ohio.