^The roof slab is marked as "105", cooling tower catwalks are numbered as "106", the communications platforms take number 107, 108 & 109 and the internal platform at the spire takes the 110th. All of these aren't real floors, the roof never counts as a real one and the other ones lack of slab to be categorized as
real floors.
Quote:
Originally Posted by Yankee fan for life
What floor will 1 wtc will start to box out and stop tapering ?
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The structural columns stop tapering above the roof slab (1334'8") but the curtain wall face stop tapering once it reaches the 1368' mark with the stainless steel parapet.