Arnold doesn't have a big frame.
Without drugs he is around 200-210 at just under 6'2".
The guy is a hyper-responder to steroids with great muscle attachments.
He'd be a free safety in football if he could run, which he can't.
He's slow as shit.
When you see Arnold next to Sergio, his large frame becomes more apperant.
Sergio was the greatest with his crazy muscle bellies and roundness, tiny waist and hips but his frame was much smaller than Arnold.
Arnold wouldn't be competitive without juice, he could never fill his frame.
He has broad chest and deep ribcage, when he is off drugs his upper chest is non existent, but he was no Andreas Munzer.
Munzer had muscles top on muscles with shitty frame, you can tell when somebody has great musculature but small frame.
Larry Scott had crazy deltoids but all the size couldn't hide his lack of shoulder girdle.
Arnold had much better skeletal frame than average but Lee Haney, Ronnie Coleman, Lou Ferrigno had much larger frames IMO.