How Revit Calculates Areas

Determining how Revit calculates room areas might not be a huge game changer for you, but it still remains interesting to see how it happens. The example below indicates 3 rooms of varying shapes.

We can export these rooms as a report, which will provide us with the triangulation method used to calculate the room areas. This command can be accessed by navigating to the Application Menu>Export>Reports>Room/Area Report.

The report will include both pictures, as well as a HTML file indicating the triangulation methods used. In the HTML report, Revit will also provide the individual area values, the Gross Area, as well as the total Window Area in the view.