Anyone have experience with metal building kits?

[Great-Kazoo]

So I'm looking at caissons to start?

The question is. Are you doing an actual steel building where the frame is steel, or steel as in pole barn using pressure treated lumber for the frame and trusses? Steel frame gets put on foundation or footers, so i gather from the one's i've seen.

If wood, the 6x's are sunk x feet in the ground with concrete, everything else ties in to them. I'd get with the contractor doing the job to see how they do it. My building is 12-15 yrs old. Things have changed construction wise since then. Looked at some impressive "pole barns" since then. Everything comes down to money for the building you end up with.