M-Bloc Type X interior gypsum panels are a lightweight cost efficient interior wall or ceiling panel for use in new construction or renovation work. M-Bloc panels can be used throughout a project as well as the adhesive application of ceramic or plastic tile in limited wet areas, e.g., bathrooms, kitchens, laundry, and utility rooms. M-Bloc Type X panels can be finished the same as regular gypsum wallboard and they accept a wide variety of attractive finishes.