revit-ifc PR: Parameter Export Mapping

Problem Description

I'm trying to use the following export mapping to have the nominal dimensions of pipe and duct segments in the appropriate psets, as per the Autodesk IFC Handbook.

Pset_DuctSegmentTypeCommon	NominalDiameterOrWidth	Diameter
Pset_DuctSegmentTypeCommon	NominalDiameterOrWidth	Width
Pset_DuctSegmentTypeCommon	NominalHeight	Height
Pset_PipeSegmentCommon	NominalDiameter	Diameter
Pset_PipeSegmentCommon	WallThickness	Wall Thickness

Unfortunately this doesn't work, these properties are still not exported. I'm using IFC4. Are there any limitations that should be considered?

Revit Version

2024.3.x

IFC for Revit Addon Version

24.3.2

Windows Version

11 24H2

Aug 15 '25 12:08 thumDer

Any updates on this? Is it only me, or a general issue? Any workaround suggestions?

Oct 09 '25 11:10 thumDer

Can you include a small sample Revit file and that text file and your attempted settings? Then we can try to replicate.

Oct 09 '25 12:10 AngelVelezSosa

This issue is also reported in Jira as "REVIT-244579" and is currently in the "Open" status.

Nov 12 '25 15:11 ArtemHnatko