Sheetrock® Brand EcoSmart Panels Firecode® x represent a revolution in wallboard manufacturing, significantly reducing the need for natural resources and impact on the environment. These lightweight Type x gypsum panels have been formulated to achieve all of the strength and performance characteristics as standard USG Sheetrock® Brand Firecode® x Panels at a lower environmental impact and reduced weight. They feature an innovative noncombustible gypsum core that is encased in 100% recycled face and back papers that form a high strength-to-weight ratio composite design. The face paper is folded around the long edges to reinforce and protect the core, and the ends are cut square and even. The long edges of the panels are tapered, allowing joints to be reinforced and concealed with Sheetrock® Brand joint treatment systems.