Knauf - Danoline Contrapanel™ is a durable, sports impact resistant, non-accessible direct-fix perforated gypsum acoustic ceiling with 3 mm bevel butt joins. Ideal for schools, gymnasiums, sports hall. Panels to be screw fixed to furring and butt join to adjacent panels. Finished with a robust white foil face, they resist marking and are easy to clean. Panels are available in T1 Tangent 14 x 4mm oval, M1 Micro 3 x 3 mm, Q1 Quadril 12 x 12 mm square and G1 Globe 6 mm Ø acoustic perforations or non perforated R1 Regula finish for perimeters. Contrapanel™ has a Group 1-S rating.