Warning · LOD / LOIN

How to fix LOD quantities missing
in IFC files

Enable base-quantity export so elements carry IfcElementQuantity (area/volume/length) at the declared LOD.

Check your IFC file — free No account · No upload · Runs in your browser · 38 validation checks

What it means

The LOD quantities missing check

Structural element missing IfcElementQuantity for declared LOD

Concrete, tool-specific steps. The check itself is schema-agnostic and works for IFC2x3, IFC4, IFC4x1 and IFC4x3.

Authoring tool	How to fix
Revit	Enable "Export base quantities" in the IFC export options; Revit then writes IfcElementQuantity for elements.
ArchiCAD	Enable base-quantity export in the IFC Translator’s settings.
Tekla	Enable quantity / base-quantity export in the IFC export configuration.
Allplan	Enable base quantities in the IFC export settings.

How it works

The whole flow runs client-side — your IFC file never leaves your machine.

Open your IFC file

Open IFC Viewer Online and drag & drop your IFC file. It is parsed locally in your browser via WebAssembly — nothing is uploaded.

Run the Health Score validation

Run validation. The "LOD quantities missing" check (RULE_LOD_QUANTITY_MISSING) flags every affected element and pinpoints it in the model tree.

Fix in Revit

Enable "Export base quantities" in the IFC export options; Revit then writes IfcElementQuantity for elements.

Fix in ArchiCAD

Enable base-quantity export in the IFC Translator’s settings.

Fix in Tekla

Enable quantity / base-quantity export in the IFC export configuration.

Fix in Allplan

Enable base quantities in the IFC export settings.

Re-validate

Re-export from your authoring tool and re-run validation to confirm the issue is resolved and your Health Score improved.

Related checks

LOD quantities missing is 1 of 38 checks. Run the full IFC Health Score to see every issue and a single 0–100 number — free, no account, no upload.