For Navisworks quantification, Model Takeoff currently only works for elements that have a GUID (‘Globally Unique Identifier’) parameter transferred from Revit. No GUID = No Model Takeoff!
The Element GUID will be transferred when ‘Convert Element Parameters’ in the Navisworks export options are set to either ‘Elements’ or ‘All’.
Klaus Stroehl,
Technical Consultant, A2K Technologies
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