I must be getting old as see a few things there that would be looking into before I was thinking about brand of bin that much bigger than footprint you have there.So I guess it's time to start bin shopping after this now. I have a 30-ish foot hole in my bin line up now. I'd like to put a 10-15000 bushel bin in there. Thinking 21 or 24' diameter, any advantages going one over another? Would rather go hopper rather than flat floor. Need to be able to reach with a 70' auger. Was going to look at brock and westeel mainly. Is there something else out there that's worth it?