I had a customer who came in to eat that was about that size. I had a time trying to find a chair that would hold him and yet allow him to get his legs under a table.
It was Veteran's Day and I casually asked him if he was a Vet. He laughed and said that he tried to enlist for the Korean War, the recruiter was really excited about catching such a prize. When he reported for the physical the recruiter even showed up to escort him through. An officer saw him and started screaming to get that giant the Hell out of there. The poor recruiter said, "But Sir, He is big enough to carry a howitzer all by himself." The answer was that yes, that was so but he would have to do it naked as the U.S. Army did not make boots or uniforms that large.
End of a possibly great military career.