Resistant Multi-Pro XS Board 2400mm x 1200mm boards are A1 Non-Combustible. They have been tested in accordance with EN 13501-1:2007 +A1:2009. These boards do not burn and therefore will not contribute any fuel to a fire. Multi-pro XS is dimensionally stable and has been reinforced to offer higher strength that std Multi-pro board. It can be used in many applications where plywood is currently being used. Available in 2 different thicknesses.