Commercial garage doors need to be able to take a lot more beating than residential doors. In many cases there will be high traffic moving through these doors, trucks and other sorts of equipment entering and leaving or a combination of both. These doors also need to comply with local codes and will require heavy-duty security locks.
Commercial doors for garages are made from different materials than what you would find on simple residential garages. They can either be made from rolling steel, steel infections or high-grade aluminum.