© 2012 Jonathan Ochshorn.contact | academic homepage | ARCH 2602/5602 homepage | calculator homepage | 2009 IBC Hole in Floor Calculator
Directions: Enter values for number of floors connected, occupancy, whether hole is designed as an "atrium," whether hole contains an exit access stair or escalator, and whether the building is sprinklered. This calculator then tells you if your proposed hole is permitted (per 2012 International Building Code). Aside from special rules for a few specialized occupancies (see IBC), 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 2012 International Building Code (IBC). I also have a slightly different calculator based on the 2009 IBC. Figure 1 (below) illustrates a possible hole in a building floor.Pressing the "update" button is not usually necessary when using the pop-down menus.