Mineral Fiber 12mm suspended ceiling is a secondary ceiling hung below the main structural roof using a lightweight metal grid, made from panels of mineral wool, clay, perlite, and recycled paper. Rigid, lightweight boards placed inside the metal grid slots. It absorbs loud echoes to make rooms quieter. Covers up ugly pipes, air ducts, and electrical cables. Mineral Fiber 12mm offers natural fire-resistant qualities. #3,500 per one, #10,500 per sq meter, 42,00 per carton and (14 pis) in a carton.