I agree with the fella that says it's how you look not how the arms measure. Why would I want to look like a basketball with a pee size head just to say I have 18-20+ inch arms (becuase thats what I would look like). 16 inch cold is pushing it for my frame and I am 175 and 5'10." That's just where I am. Some of you real big guys have it tougher though with real long muscles, you've got to get em to that size to look big I am sure. Not only that but the small-mid size guys have the advantage on BPress to, they just dont have as far to go and can press more but not as far, you know? I am natural btw but if I went roid, I most likely would bounce up to 18" I guess with good effort. Best of luck to you all!