Autodesk, please fix this bug which has been around for nearly 10 years!
When the Structural engineer copy/ monitors an architectural door/ window, Revit generates a bigger opening than the actual opening in the original architectural window/ door family. This is caused by Revit taking the maximum extents of the family (incl. reveal, door swings >90 deg) and makes that the structural window/ door opening size. Very annoying.
There is no viable workaround to solve this. Having the structural engineer to replace all the architectural doors with just openings is too much effort in my opinion.
http://www.revitforum.org/structure-general-questions/25957-wall-opening-enlarged-during-copy-monito...
http://forums.autodesk.com/t5/revit-structure/copy-monitor-issues-door-openings-are-wider-than-origi...