Is There a Limit to How Tall Buildings Can Get?

Nate Berg, The Atlantic Cities:

Theoretically, then, a building could be built at least as tall as 8,849 meters, one meter taller than Mount Everest. The base of that mountain, according to these theoretical calculations, is about 4,100 square kilometers – a huge footprint for a building, even one with a hollow core. But given structural systems like the buttressed core, the base probably wouldn’t need to be nearly as large as that of a mountain.

And this theoretical tallest building could probably go even taller than 8,849 meters, Baker says, because buildings are far lighter than solid mountains. The Burj Khalifa, he estimates, is about 15 percent structure and 85 percent air. Based on some quick math, if a building is only 15 percent as heavy as a solid object, it could be 6.6667 times taller and weigh the same as that solid object. A building could, hypothetically, climb to nearly 59,000 meters without outweighing Mount Everest or crushing the very earth below. Right?

Imagine the view from the top.

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