MDF Panel (Common: 1/2 in. x 4 ft. x 8 ft.; Actual: 1/2 in. x 49 in. x 97 in.) Temple-inland ultra stock MDF is valued for Temple-inland ultra stock MDF is valued for its defect-free mposition and highly uniform density that allow it to cut, rout, shape and drill cleanly, holding intricate detail with a minimum of waste and tool wear. Panel