Automotive and many other industries consider galvanized steel coils to be an absolute necessity owing to their thickness and resistance against corrosion. However, the thickness of the galvanized steel coils is affected by the end goal which is intended for such coils depending considerably between 0.3 mm to 3.0 mm. Heavier coils enable thicker structures to be built which can be later used in the construction and manufacturing sectors. While thinner coils on the other hand can be used in the automotive and household appliances sectors. But whatever the case might be, it is necessary that you know the exact thickness for your project and for utilizing it such that it performs best and is durable.