Read about metal storage sheds
The fact that a Quonset hut can be easily moved made it a great tool for the Army during the second world war. At that time, the Quonset hut was used for every building need on the base, from barracks to post office to medical post. When they needed to move the troops, the Quonset huts were able to be taken to the next location to continue to serve the troops. That has not changed, you can take your Quonset hut where you need it. It can be disassembled and transported again, making it a much easier process then trying to ship a more traditional style building.