What I'm seeing online is 6'11", so just shy of 7ft, but that's probably interpretive of Mignola's loose style. Ron Pearlman's closer to or just over the 6' mark and might've worn lifts as HB. He's a big lad though and his bigness seems to fluctuate a bit depending on what would be most dramatic in the art. He's almost always bigger than Abe Sapien though, so it somewhat depends on how tall you think Abe is.