01 Benchmark Model

AC20-FZK-Haus

ArchiCAD IFC4  ·  Karlsruhe Institute of Technology  ·  buildingSMART

The file exported without error. The quantities existed. The semantics still required verification.


Elements18
Concrete131.67 m³
Delta0.0001 m³
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02 Vendor Sample

SampleStructuralModel.ifc

Revit 2025  ·  IFC4  ·  Autodesk structural sample

A software vendor benchmark does not guarantee clean or analytically reliable IFC data.


Elements33
Concrete232.18 m³
Delta0.0004 m³
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03 Public Test Model

IfcReinforcingBar.ifc

Allplan 2014  ·  IFC2X3  ·  buildingSMART public test model

Small files are not safe files. Initial result: 204 kg. Validated reference: 404.83 kg.


Elements18
Rebar404.83 kg
Delta0.00 kg
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04 Production Scale

SampleBimModelWebinar.ifc

Revit 2025  ·  IFC4  ·  Autodesk structural sample

641 concrete elements. At this scale, errors do not appear as failures — they appear as plausible outputs.


Elements641
Concrete2,290.91 m³
Delta0.007 m³
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05 Commercial Scale

SampleBuilding.ifc

Revit 2024  ·  IFC4  ·  Multi-storey commercial building

A class-only extraction returns 9 foundation elements and 56.88 m³. The correct count is 90 elements and 361.62 m³.


Elements218
Concrete2,760.58 m³
Accuracy99.6%
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06 German IFC2X3

Bauteil-Oberflächen.ifc

Allplan 2017  ·  IFC2X3  ·  Underground car park

50% of reported concrete was non-structural. The answer was in one field the extractor did not read.


Elements14
Corrected62.703 m³
Removed31.371 m³
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07 Live Project

CPS-026/270 — Residential RC Frame

Revit 2021  ·  IFC2X3  ·  Real project  ·  Kenya

This is not a benchmark model. The first delivery failed.
Initial result: 20,906 kg steel. Correct: 2,409 kg. The data was fully present in the IFC. The system did not read it.


Modeled Bars1,252
Corrected Steel2,409.84 kg
Cost Delta€8,615
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