thats a link to a non canon site, and really not a good reference for height of the stand anyhow, Not that it matters to me, I don't have the Belfast bridge
If you are referring to the images of the interiors - well they are from the Star Trek: Fact Files publication series which was an officially licenced production of Paramount Pictures who assigned Star Trek staff members to assist in the research and production of them. Even Judith and Garfield Reeves-Stevens were authors from time to time.
Despite some criticisms they are as canon as canon is going to get. Period.