Gyproc M-Strip Ceiling System Gyproc M-Strip Ceiling System See more 6.4 mm Skimmed 6.4 mm Skimmed See more 9 mm Skimmed 9 mm Skimmed Discover the coverage you need using our Concealed Grid systems calculator ... See more 12.5 mm Skimmed 12.5 mm Skimmed See more 12 mm Jointed 12 mm Jointed See more Gyptone® BIG Line 6 Gyptone® BIG Line 6 See more Gyptone® BIG Quattro 41 Gyptone® BIG Quattro 41 See more Rigitone® 8-15-20 SUPER Rigitone® 8-15-20 SUPER See more