I
think the general rule is 5'10" 200 lb at 7% Bf for the average person. Going up or down for every inch add or subtract 10lbs.
So 6' 220 at 7% BF is the max natural limit for most. Not saying they will get there by natural means. Also, some believe juice can raise that a bit. So you might can add 10lbs to it.
Realgains posted something about this a while back.