Founded in 1918, The Structural Slate Company promotes the use and sale of PA Natural Slate products. Standard products consist of flooring, roofing, fireplace facings, mantels & hearths, as well as Architectural products, such as copings, facing panels, window sills, treads & risers, counter tops & vanities, etc. All products are "custom manufactured" to specification and quotations are free of charge. A drafting department is available to assist anyone from Architect to Homeowner with design and recommendations.