Very similar but unique terminology. Bottom line, my question is can we make use of just one unenclosed exit through the mezzanine? Provided that the OP indicated this space is three,088sf Which other parts have already got elevators, what exception into the necessary obtainable route do you think they qualify https://manual-lifting-equipment16059.snack-blog.com/38503943/detailed-notes-on-mezzanine-safety-gates-uk