Detail diagram of Burj Dubai April 15th 2008

The stairwell starts at lev160mezz and reaches tier23. from tier23-24 is ladder access. then from tier24-27 is internal ladder access inside pinnacle. (the 156m long pinnacle actually has internal ladder the whole way from tier20B). As for lift runs. the longest is 514m to lev140. from there you can catch more lifts to lev154office.also the lift runs terminates at 160mezz levels. there is also the express lift to lev124 observation deck) added ob decks for eiffle,cn tower, esb and sears, steel is now on the 8th level.