Currently, the Wikipedia entry for this movie has a list detailing every victim of the killer elevator, and on which floor they died. As far as I know, the floor numbers have no significance whatsoever in the movie.
"Common criticisms include that the film was not gripping enough, having a weak storyline, having generally unrealistic deaths, weak dialogue and unconvincing special effects."
The fun thing about this movie is trying to figure out the motivations behind the actions of Ron Perlman's and Michael Ironside's characters, not to mention the hilarity of the movie treating elevator repairmen as being in a profession as intriguing and mysterious as a tv crime drama.
Things the accountant at Ron Perlman's elevator company SHOULD have asked:
1. What's this 5,000,000 expenditure on dolphin brains?
2. What's this R&D budget that includes research into how to hook dolphin brains up to elevator computer systems?
3. What the #$@!, dolphin brains?