... house, Minimum Steel Quantity:Q235,Q345, High Construction Efficiency, Long life time, warehouse, factory. If you need: Options 1) Steel Structure Building ... 2) Metal Building 3) Modular House4) Steel Structure Warehouse 5) Workshop ... sheet 0.326~0.8mm thick,(1150mm wide), or sandwich panel with EPS, ROCK WOOL, PU etc insulation thickness ...