then put roof trusses on top. No need for a complicated foundation, either. Even in regions with cold, frost-prone winters, pole barns endure well with nothing more than the simplest connections ...

My garage is a pole barn but I had the interior walls framed ... Up top, I went with attic trusses for some additional storage space. They have 2x6 rafters (or top chords), 2x8 bottom chords ...