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When One Floor Doesn't Always Equal Another

By Eric Richardson
Published: Friday, April 20, 2007, at 05:01PM

In their just-released issue the Downtown News talks up the big plans for Park Fifth, a massive development slated for the parking lot south of Metro 417. The project would contain close to 1,000 condos and an upscale hotel. In the article they speculate that the taller tower, at possibly 76 stories, could top out higher than Library Tower's 72 floors.

At first glance it's a simple math problem. 76 is greater than 72, right? When it comes to building heights, though, it's not that simple.

In order to compare two skyscrapers you need to look at floor-to-floor height. Residential buildings typically have smaller numbers here, with less infrastructure sitting between the floors.

Library Tower has a floor-to-floor height on 13.8 or 13.9 feet. That gives it its height of just over 1000 feet. A residential tower is more likely to have a floor-to-floor of 12 feet or so, meaning you'd need 84 floors to break the 1,000 mark.

So while it's possible developer David Houk tops Library Tower's story count, it's pretty certain his building won't actually be taller.


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