Commercial steel buildings from the experts
One truck can deliver all of the materials you need, so the transportation cost is lower. The other way it manages to stay affordable is that it does not require a lot of manual labor to assemble. Compare the assembly time of a day for a Quonset hut versus the time of a month for your more traditional manufacturing styles. Once you factor together the cost of materials, the cost of transportation and the cost of assembly as compared to masonry or lumber you start to see how much more affordable an option a Quonset hut is. The portability of the Quonset hut made it especially useful to the United States Army back in World War Two.