The 'height' of the ceiling is eight feet. [=the ceiling is eight feet above the floor; the ceiling is eight feet high]
It was 'the height of' stupidity to quit the team. [=it was extremely stupid to quit the team]
He was 'at the height of' his fame when he died. [=he died when he was most famous]
(..) It had to be about meters... ...because the nature of the floor that gave way. And also too, if one guy fell down on top of the other... ...just from that height, it could have caused substantial injuries as well. - I'd probably go that way. - Go that way. - I'd go this way. - Go there? (..)2012 The Hobbit: An Unexpected Journey