The Multiboard eXLine XLG 2 - 275mm is a non-combustible magnesium-oxide (MgO) substrate, with vertical architectural grooves at 275mm centres, routed in the top surface of the material. The location of the fibreglass mesh is drawn towards the centre of the board, preventing the exposure of the mesh at the top surface, yet still providing a robust, high fire/acoustic system for residential and commercial applications.