MF (Metal Frame) Plasterboard Ceilings are a false suspended ceiling used for upgrading soffits within existing refurbishment or new build projects. MF Metal Frame Ceilings are manufactured by British Gypsum, Knauf, Lafarge, Richter, HEP, Hilltop, and Libra and consist of a metal framework which is used as a suspension system to which the plasterboard is fixed.