I Vietnam I lived in a two story chicken coop, but our headquarters was in two 25' x100' Quonset huts. I spent many nights sleeping on the floor behind my desk because it was quieter, not as windy and dusty, and didn't leak when it rained.. I got a lot of gas for living in a "soup can".
Saw a lot of them in the years between WWII and Korea. War surplus that was reasonably priced. Seems every farm and ranch in our area...and a lot of other places...had at least one, and many times several of them in every imaginable size.
Later on Butler buildings took over.