Ceiling Tile Edge Type Square Tegular Grid Size 9/16 in Overall Length 48 in Overall Width 6 in Ceiling Attenuation Class 26 Fire Retardant Class Class A Light Reflectance 88 Percent Noise Reduction Coefficient 1 Recycled Content 71 Percent Texture Fine Application Libraries Color White Coverage 24 sq ft Features 30-Year Limited System Warranty Against Visible Sag Durable Material Fiberglass