Materials often include heavy gauge cold rolled steel, 3003 series aluminum and C110 copper to distinguish from more common imported products. Raw materials are locally sourced where possible. All products, including accessories developed with our producer partners are made in Pittsburgh, Pennsylvania. The highest quality multi-stage industrial coatings are used on all steel and some aluminum pieces. All copper objects receive a natural dark patina finish without any topcoat. The finish will continue to darken over time.