Qto_ColumnBaseQuantities -> OuterSurfaceArea
- Dominant language
- C#
- Stars
- 637
- Forks
- 225
- PR merge metrics
- No merged PRs in 30d
Description
### Problem Description
In Revit 2025.3 and IFC Exporter 25.2.0.5 it is not working overwritting param OuterSurfaceArea with custom value.

The result is:

With other category, like beams it is working.
I try with columns and structural columns categories but still not working.
I think it is a bug.
### Revit Version
2024.0.x
### IFC for Revit Addon Version
24.x.x
### Windows Version
11 22H2
Contributor guide
Research direction
Start by reproducing the reported OuterSurfaceArea override for columns and structural columns in Revit with the IFC Exporter, checking the version discrepancy in the report. Compare the column behavior with the working beam case and inspect the exporter path handling Qto_ColumnBaseQuantities. Done means a custom OuterSurfaceArea value is preserved for columns in the exported IFC.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100