5-over-1, 5-over-2, 4-over-1, and 3-over-1 are all often used terminology and they're referring to the number of floors in a podium-constructed building, not di

5-over-1, 5-over-2, 4-over-1, and 3-over-1 are all often used terminology and they're referring to the number of floors in a podium-constructed building, not different sections of IBC. All of these podium construction styles are a product of section 510.2 of the IBC which allows for these to be treated as two separate buildings for fire purposes. https://www.woodworks.org/resources/code-path-and-requirements-for-podium-projects/ https://www.woodworks.org/resources/code-path-and-requiremen... https://en.wikipedia.org/wiki/5-over-1 https://en.wikipedia.org/wiki/5-over-1