Introducing DragonBoard Magnesium Oxide (MgO) board – the ideal option for any building project in need of robust and long-lasting structural and fire-resistant subflooring. Whether used with wood or metal joists, DragonBoard offers unmatched strength and durability. Plus, when used for both ceilings and subfloors, its fire-resistant qualities are further enhanced, providing unparalleled protection against potential flammable incidents.