Hi @geob,

I believe that the Data Inspector triangulates when displaying the models, but the actual geometry in FME remains in its original form. If you would like to send me a copy of your IFC file, I would be happy to check that out for you.

Hi Dave,

You can find a simple-building.zipIFC File below. Thank you so much for your help

Hi @geob,

Thank you for the file. If you look at the geometry section of the Feature Information window in the Data Inspector, you can see a description of the true geometry, in this case a Solid made of extruded Faces. This is appropriate for IFC data.