It's not just a matter of code, it's a straight-up matter of physics. Every additional story adds a significantly greater burden on the floors below it than th

It's not just a matter of code, it's a straight-up matter of physics. Every additional story adds a significantly greater burden on the floors below it than the previous one. You can get away with sticks and sheetrock for a story or two, but the building itself becomes expensive, fast, once you exceed about four stories.