Gapfill — building-product attributes the supplier never sent
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Standards layer — the full ETIM measurements

ETIM is free under the Open Data Commons Attribution Licence (ODC-By), downloadable in full. Its own API is Swagger-documented but returns 401 without credentials (OAuth2 client_id
Gapfill — building-product attributes the supplier never sentresearchingChapter 5 of 13

Access and scale

  • ETIM is free under the Open Data Commons Attribution Licence (ODC-By), downloadable in full.
  • Its own API is Swagger-documented but returns 401 without credentials (OAuth2 client_id/secret, Release and Details services with filtering and paging).
  • bSDD serves all of ETIM 10.1 free, with no auth: 5,640 classes, 17,377 features. Swagger spec public. viewer.etim-international.com class pages prerender and are enumerable via /sitemap.txt5,680 URLs.
  • Conclusion: machine-readable today at zero cost and zero paperwork. No licence negotiation is needed to adopt ETIM as a spine.

The tile classes, with feature counts

Class Name Features
EC011340 Ceramic tile 28
EC012349 Concrete tile 30
EC011341 Mosaic tile 21
EC010182 Natural stone tile 16
EC011708 Tile profile 11

EC011340 sits in group EG020056 (Masonry and tile material), published since ETIM 8.0, v5. Across all ~200 bSDD dictionaries it is the only real ceramic tile class — "porcelain stoneware" returns zero.

Flooring group EG020068, 13 classes: Parquet EC004040 18; Laminate EC004041 15; Solid wood EC004085 12; PVC flooring EC004931 14 (added only December 2024); Screed EC012273 17; Rubber EC012271 4; Plastic EC012272 3.

Soft flooring is a genuine taxonomy gap: no carpet, textile, linoleum or LVT class exists at all.

Feature codes that DO exist on EC011340

  • Thickness EF020850
  • Dimensions, nominal EF020848 / EF020849; production EF020855 / EF020856
  • Finish EF020841 / EF020846, EF024897, EF020838
  • Slip modelled twiceEF020842 (DIN 51097 A/B/C) and EF020843 (R9–R13)
  • PEI equivalent EF020844
  • Frost EF020845boolean only, not the tested class
  • Rectified EF020839 / EF020840, EF022394
  • Colour EF020851

That is a usable spec spine: slip in both common notations, a wear class, thickness, rectified edge, finish and colour.

Properties that are ABSENT

  • Water absorption is absent from EC011340 — which breaks this document's showcase derivation, since ISO 13006 ties absorption to group and porcelain is definitionally <0.5%.
  • Across all 17,377 ETIM features there are ZERO occurrences of: ISO 13006 / EN 14411 group, DCOF / ANSI A326.3, modulus of rupture, breaking strength, crazing resistance, stain resistance, thermal shock.
  • It is a modelling gap, not a vocabulary limitEC012349 Concrete tile does carry water absorption.
  • Nothing relevant sits in the DYNAMIC pipeline, so there is no imminent fix.

Honest position: adopt ETIM as the spine, then extend it with water absorption, ISO 13006 group, breaking strength and DCOF. That is a defensible asset and unavoidable work.

The revealing detail: consumables beat the tile

Tile adhesive EC011707 = 42 features; tile grout EC011709 = 28; ceramic tile EC011340 = 28. Lighting is roughly four times deeper: downlight/spot/floodlight EC001744 = 118; ceiling/wall luminaire EC002892 = 115; street EC000062 = 85; emergency EC001957 = 68.

The standard grew out of the electrical and plumbing wholesale channel, and it shows. ETIM models what merchants stock and reorder, not what architects specify.

eCl@ss: better classes, no physics

  • eCl@ss 16.0: 22-47 Tile/panel = 76 classes, split by body type and roughly matching ISO 13006 bands. 22-46 Flooring = 39 classes, including carpet, linoleum and cork — the exact classes ETIM lacks.
  • But ADVANCED 16.0 tile classes expose only 7 properties, all REACH/SVHC/commercial. No technical aspect at all.

Verdict: ETIM wins on physics, eCl@ss on classes, neither on both.

ISO 13006 / EN 14411 / CPR

  • ISO 13006:2018 is the real tile data model — A/B forming, Ev groups Ia–III, Annex N PEI scale, ISO 10545 test methods — but paid, prose, and not machine-readable. (2018, 2012)
  • Water-absorption bands: BIa <0.5%, BIb 0.5–3%, BIIa 3–6%, BIIb 6–10%, BIII >10%. Porcelain is definitionally <0.5%, i.e. impervious.
  • It also defines extruded vs dry-pressed, dimensional tolerances, surface quality, and the canonical terminology for glaze, engobed, rectified.
  • EN 14411:2012 remains the CE / DoP basis. CPR (EU) 2024/3110 will not displace it for years — family by family, with standardisation requests in 2027/2028.
  • No tile Digital Product Passport model exists or is commissioned.

PEI caution. PEI grades the wear of a glazed surface; unglazed and through-body porcelains receive no PEI rating, so an absent PEI is evidence of an unglazed or through-body product. Do not over-derive: sources treat water absorption, PEI and COF/slip as distinct complementary attributes, and slip rating is a measured test result that is not reliably derivable from finish or appearance.

This is the most important finding in this section, because it was established by enumeration rather than by failing to find something.

  • All 1,383 registered data suppliers in the Dutch 2BA datapool were enumerated. Absent: Tarkett, Gerflor, Interface, Desso, Unilin/Quick-Step, Kährs, Bolon, Rockfon, Armstrong, Uzin, Bostik, Forbo/Eurocol, Mapei, Ardex, Omnicol, Knauf, Saint-Gobain, Schlüter.
  • Among the top 25 "Bouw"-sector data suppliers, not one is a tile or flooring manufacturer — they are bathroom, electrical, HVAC, fastener and tool companies.
  • Forbo Flooring Systems: all 96 child sitemaps enumerated. Exactly ONE URL in the entire Forbo estate matches /etim/ — the Eurocol adhesives page.
  • Uzin / Uzin Utz: zero ETIM URLs across full sitemap crawls.
  • Mosa's only traceable ETIM data was applied downstream by a wholesaler, not published by Mosa. Villeroy & Boch's 2BA presence is its bathroom division. Marazzi is nowhere.
  • Germany's 2022 building-materials launch plan: "Fliesen und Natursteine" was the one assortment group with no industry participants at all.

And yet permission has existed for years

  • Flooring is officially in scope (this corrects an earlier "could not establish"): ETIM UK's Building Materials Sector includes "Walling, flooring & roofing materials, Structural steel, Civil infrastructure, Doors & windows, finishing & decoration products".
  • The Builders Merchants Federation has been Sector Lead since 1 January 2020 — 1,020 members, GBP 51.6bn combined sales.
  • ETIM Netherlands created a "Tegels" (tiles) commission after mid-2020.
  • 11 of 18 national chapters run building materials; Belgium does not.

The problem is participation, not permission.

The double read — and why it matters more than the schema

Flattering: the normalisation work is genuinely undone. A free, machine-readable tile schema exists with 28 usable fields including R-value and a PEI equivalent, and not one tile brand has populated it.

Unflattering, and at least as plausible: adoption is absent because demand is absent. Five and a half years of permission, an organised merchant constituency of 1,020 companies, a purpose-built tiles commission, and a national launch that attracted zero tile participants. That is not a story about missing tooling.

More likely: tile selection is driven by appearance, price, availability and range, while compliance fields are supplied once, as a PDF datasheet or DoP, at specification time — not needed per-SKU in a catalogue.

If that holds it inverts this document's central split: the compliance-grade schema would have no commercial buyer.

Test before building: ask a tile merchant and an architect which fields they query per-SKU versus accept as a PDF. If the answer is "appearance and availability, plus a datasheet on request", the standards work is a cost, not a moat.

Exchange format and cross-taxonomy mapping

  • ETIM xChange 1.1 is the current JSON master-data exchange standard, replacing ETIM's earlier BMEcat recommendation; a published xChange-to-BMEcat field mapping exists. BMEcat remains the paired XML format, with ETIM classification embedded, and a published ETIM BMEcat guideline.
  • Sources note ETIM is increasingly the feature-data backbone behind BIM product objects, linking specify–procure–install.
  • Licence trap on the mapping. NBS publishes a native Uniclass REST API (GET definitions/uniclass2015/{notation}/{depth}, JSON/XML, registration-gated, quarterly downloads) — but Uniclass is CC BY-ND. An ETIM-class-to-Uniclass-notation crosswalk is a derivative work: internal use is probably fine, publishing or selling the mapping likely is not. Get legal advice.
  • bSDD gives mapping capability but not the dataset — it contains no OmniClass and no MasterFormat at all, so a mapping to the US taxonomies cannot be sourced from it. Cross-dictionary ClassRelation exists (IsEqualTo, IsSimilarTo, HasReference) and Molio's CCI shows full coverage is achievable, but Uniclass 2015 in bSDD carries zero outbound relations in sampling, sits at Preview status, isVerified: false, and was last touched August 2024.

Unverified — do not rely on

A claimed list of tile-chemistry ETIM adopters (Mapei, Ardex, Weber, Sopro, PCI) conflicts directly with the 2BA enumeration above. Treat as unverified.

ETIM AU/NZ

Announced 26 November 2021 by the Australian Industry Group, electrotechnical-only, and etim-aunz.com is still a parked NameBright page nearly five years later. Covered in full in the AU/NZ section below.