Have a look at this:
http://www.airliners.net/open.file/1071214/L/
I am puzzled as to where this headroom comes from. Can you have anything that big in the belly hold of a 707 or 320? I mean, 392 cm cabin width would mean Tu-114 is just 40 cm wider than 707 and less than 20 cm wider than 320!
So yes, it is the fuselage height that I wonder about, from underbelly to roof. Preferrably an idea of how this is divided (underbelly to kitchen floor, headroom kitchen floor to kitchen ceiling, thickness of deck and deck beams from ceiling to floor... cabin height is quoted as 218 cm, then roof thickness from ceiling to rooftop... this sort of thing).
The comment on that picture is "Kitchen on a technical floor" which suggests to me that perhaps this tu114 has had another floor added....hence the low headroom, rather like a mezzanine (is that how you spell it lol)
.mic