What the corpus measures: 121 competitor BIM packages

In September 2026 we gathered 121 distinct BIM packages published by tile manufacturers —5.2 GB— and read them with a versioned script, file by file, including the zips that come inside other zips. These are the figures.

The corpus

• 121 distinct packages, 5.2 GB, 5,797 files.
• 18 brands from 9 countries: Spain, Portugal, Italy, Brazil, Colombia, the United States, Ecuador, Thailand and Mexico.
• Brands present: Revigrés, Arcana, Vives, Cotto d’Este, Portobello, Alfagres, Landmark Ceramics, INCEPA, Graiman, Marazzi, COTTO, Pamesa, Panaria, Atlas Concorde, Laminam, Casalgrande Padana, Grespania and Porcelanite.
• 185 .rvt files, 81 .rfa, 3 .rte, 138 .ifc, 17 .adsklib, 13 .lcf, 11 Archicad .gsm and 7 .pln, 83 PDFs.
• 4,959 measured textures.

Only packages the manufacturer publishes for download with no account or form are included, respecting what each site allows. So the corpus measures who publishes openly, not the whole market: Spain, Portugal and Italy account for 91 of the 121.

The Revit versions

The version read from each of the 269 Revit files ranges from 2015 to 2024. Files in version 2025 or later: 0. The mode is 2019 (84 files), followed by 2021 (62) and 2023 (58). There are 6 in 2024, from Arcana, Vives and one unidentified brand: they publish new series in 2024 while the older ones stay on 2015 or 2018.

The machine path

269 of 269 Revit files contain the disk path of the machine that generated them.

The IFC files

• 138 IFC files in 69 packages.
• Schema: IFC2X3 in 72, IFC4 in 66. The IFC4 files come from three brands: Revigrés, Cotto d’Este and Panaria.
• Product class: IfcCovering in 78, IfcWall in 45, IfcSlab in 11 and IfcBuildingElementProxy in 4.
• Pset_ManufacturerTypeInformation: 136 of 138.
• Test results with a value: 93 files, and 73 cite the standard. All of them are written as text (“< 0,1 % [ISO 10545-3]”). As a number: 0.
• Textures inside the IFC (IfcImageTexture): 0.

The official validator

We sent one IFC per brand to the buildingSMART validation service: seven files. The three IFC2X3 files from Atlas Concorde, Vives and Arcana pass. Casalgrande’s IFC2X3 fails, and so do all three IFC4 files, from Revigrés, Panaria and Cotto d’Este.

The images

Of the 4,959 measured textures, the largest side is 14,875 px, and 100 exceed 8192 px. The median is 2.02 MP. Where the file name states how much the image covers, the measured resolution has a median of 1.97 pixels per millimeter. 39 packages also carry relief maps.

What it does not measure

These figures are structure extraction, not semantic validation: an IFC listing a property does not say its value is correct, and reading a Revit file without opening Revit gives structure, not model content. The version table says what the manufacturers chose to publish; it does not say which Revit version the studios have installed, which is a different question and is not measured here.

Our own measurement, September 2026, of 121 packages published by 18 brands in 9 countries. Official validation: buildingSMART Validation Service, 26 September 2026. Instrument and data in the repository.