What I say about steel arch buildings
(Don't forget to grade and level your building area first!) If you prefer to lay concrete pads instead of a full foundation, remember to include enough space in which to embed anchor bolts for the support columns. A large part of your prefabricated metal buildings project is completed once the foundation is set. What's left is raising and bolting the columns and rafters into place and securing the metal sheeting for the walls. Frame your windows and doors when attaching the wall girts and prior to raising the wall sheeting. Prefabricated metal buildings also work great as airplane hangars for farmers who use crop dusters to maintain their crops.