What are the dimensions of your part?  It looks like you duct is 10,000x10,000 inches by looking at your image.  The length also looks extremely long.  Are you trying to use metric sizes?

Nathan Chapman
Production Manager at General Heating and Air Conditioning

Revit Architecture Certified Professional
Revit MEP Mechanical Certified Professional
Revit MEP Electrical Certified Professional
DynaFabrication Package Author

Was this answer helpful? If so, please click the ACCEPT AS SOLUTION or the KUDOS button.