I have four in my yard, Dad sold them years ago back when there was the goverment storage program.

Nothing wrong with them at all, they haven't been made for years now, I don't know who bought them out or what happened?

Mine have the door up a ring so as not right on the ground.  They are a narrow core bin,  put up back in the late 70's early 80's and still look really good.  Good roof load.  These are 10,000 bu. bins so maybe totally different.