© 2010-11 Jonathan Ochshorn.contact | academic homepage | ARCH 2602/5602 homepage | calculator homepage | 2012 IBC Hole in Floor Calculator
Directions: Enter values for number of floors connected, occupancy, whether hole is an "atrium," whether hole is part of means of egress or contains a non-egress stair or escalator, whether the building is sprinklered, and whether the hole is open to certain types of corridors. This calculator then tells you if your proposed hole is permitted (per 2009 International Building Code). Aside from covered mall buildings (which have their own rules, per IBC Sec. 402), there are five main permitted hole categories:
For additional information and limitations for these categories, read this more detailed discussion of holes in relation to the 2009 International Building Code (IBC). I also have a slightly different calculator based on the 2012 IBC. Figure 1 (below) illustrates a possible hole in a building floor.Press "update" button.