Originally Posted by Roadcruiser1
Each of the upper floors is 20-25 feet high from floor to ceiling. The 103rd floor is 1,308 feet. So the beginning of the 1,300 foot mark would be on the 102nd floor, and floor 103 doesn't have M floors. From what I can tell all the floors including the M floors give One World Trade Center a floor count of 101 including the floors in the mast.
The 102nd Floor is 1,266' 8" above street level. The 103rd floor is 1,293' 4". The 104th floor, which will be at 1,313' 10" will break the 1,300 foot mark or 103M, which is at 1,303' 7". Hope all this info helps.