First, find the instructions:thumbsup: If it is anything like the US Steel building, make sure the foundation is level and square. Mine fits into a channel that keeps the bottom in place. Put the sections together on the ground if you can lift the whole section. If not, it is possible to put half up at a time. Scaffolding, on wheels is big help. put the bolts in loose, tighten after the building is complete. Mine is 25x40, 13 ft high, and I had no problems, just 1 or2 guys helping part of the time. I actually put the first two bows up by my self, no power equipment. Wouldn't do that part again, but it is possible if the wind is not blowing. If you think the US Steel plans would help, pm and I will scan them for you