Terrazzo Workers and Finishers

Construction and Extraction Occupations
O*NET-SOC code
47-2053.00

Apply a mixture of cement, sand, pigment, or marble chips to floors, stairways, and cabinet fixtures to fashion durable and decorative surfaces.

  • Data source: BLSPublished: 2026-08

    Low· relative

    LowFour relative bandsVery high

    Group-level value

    Scale, basis and source

    Four relative bands (Low / Moderate / High / Very high)

    831 detailed occupations in the BLS Employment Projections table. Assigned per National Employment Matrix (NEM) code, so occupations sharing a NEM code carry the same band

    Source dataset (XLSX download)

  • Data source: AnthropicPublished: 2026-03

    0.000

    0.000Range of values carried here0.745
    Scale, basis and source

    Observed exposure index, 0–1 as published

    Mapped onto O*NET tasks

    Published per SOC 2018 occupation; every O*NET occupation with the same SOC 2018 code carries this value

    Source dataset (CSV download)

  • Data source: ILOPublished: 2025

    0.10

    0.09Range of values carried here0.70

    Group-level value

    Scale, basis and source

    Generative AI exposure index, 0–1 as published

    Published per ISCO-08 unit group. Linked to this occupation, wholly or in part, by applying U.S. Bureau of Labor Statistics crosswalks (ISCO-08 to 2010 SOC, 2010 SOC to 2018 SOC) as published

    Source dataset (PDF download)

What kind of figure this source publishes

The BLS category is a relative rank, not an absolute level, and it is not a first-hand measurement: it groups an occupation's percentile ranks across several published studies into four bands. It is not an employment or wage forecast, not a probability of adoption, and it does not separate automation from augmentation.

Task-level exposure

Show 24 hidden tasks

26 rated tasks · 0 tasks with β ≥ 0.5 (0.0%)

β = direct exposure (E1) + 0.5 × exposure when tools are available (E2), per the source repository's definition.

  • Source unit: O*NET 27.2 tasks → O*NET 31.0 occupation code
  • All rated tasks are in the O*NET 31.0 task list.
Source
OpenAI "GPTs are GPTs" exposure rubric
Release
gh-main-0471612
License
MIT License, Copyright (c) 2024 OpenAI
Task (O*NET 20.1)Claude.aiRaw / share %
Wet concrete surface and rub with stone to smooth surface and obtain specified finish.

47-2053.00

0.003771.2
Precast terrazzo blocks in wooden forms.

47-2053.00

0.001528.8

Data sources & licenses — O*NET®, Anthropic Economic Index, Eloundou et al. (2023): see full notices on the Credits page

All O*NET 31.0 task statements (26)

All O*NET 31.0 task statements for this occupation (English, as published; task type core or supplemental). Exposure values are not listed here; they are in the table above, next to each task statement as worded in the O*NET version each source used.

Task (O*NET 31.0)Type
Cut metal division strips and press them into the terrazzo base for joints or changes of color to form designs or patterns or to help prevent cracks.Core
Blend marble chip mixtures, place into panels, and push a roller over the surface to embed the chips.Core
Measure designated amounts of ingredients for terrazzo or grout, according to standard formulas and specifications, using graduated containers and scales, and load ingredients into portable mixer.Core
Mold expansion joints and edges, using edging tools, jointers, or straightedges.Core
Spread, level, or smooth concrete or terrazzo mixtures to form bases or finished surfaces, using rakes, shovels, hand or power trowels, hand or power screeds, or floats.Core
Grind curved surfaces or areas inaccessible to surfacing machine, such as stairways or cabinet tops, with portable hand grinder.Core
Grind surfaces with a power grinder, or polish surfaces with polishing or surfacing machines.Core
Position and secure moisture membrane and wire mesh in preparation for pouring base materials for terrazzo installation.Core
Modify mixing, grouting, grinding, or cleaning procedures, according to type of installation or material used.Core
Wash polished terrazzo surface, using cleaner and water, and apply sealer and curing agent according to manufacturer's specifications, using brush or sprayer.Core
Mix cement, sand, and water to produce concrete, grout, or slurry, using hoe, trowel, tamper, scraper, or concrete-mixing machine.Core
Sprinkle colored marble or stone chips, powdered steel, or coloring powder over surface to produce prescribed finish.Core
Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth with a trowel.Core
Clean installation site, mixing and storage areas, tools, machines, and equipment, and store materials and equipment.Core
Fill slight grinding depressions with matching grout material and hand-trowel for a smooth, uniform surface.Core
Chip, scrape, or grind high spots, ridges, or rough projections to finish concrete, using pneumatic chisel, hand chisel, or other hand tools.Core
Clean chipped area, using wire brush, and feel and observe surface to determine if it is rough or uneven.Core
Move terrazzo installation materials, tools, machines, or work devices to work areas, manually or using wheelbarrow.Core
Repair concrete by cutting out damaged areas, drilling holes for reinforcing rods, and positioning reinforcing rods, using power saw and drill.Supplemental
Build wooden molds, clamping molds around areas to be repaired, or setting up frames to the proper depth and alignment.Supplemental
Signal truck driver to position truck to facilitate pouring concrete and move chute to direct concrete on forms.Supplemental
Produce rough concrete surface, using broom.Supplemental
Precast terrazzo blocks in wooden forms.Supplemental
Spread roofing paper on surface of foundation and spread concrete onto roofing paper with trowel to form terrazzo base.Supplemental
Remove frames when the foundation is dry.Supplemental
Wet concrete surface and rub with stone to smooth surface and obtain specified finish.Supplemental

Occupation information

Employment outlook (BLS)

Employment, 2025
1K
Projected employment, 2035
1K
Change (2025–35)
-13%
Median annual wage, 2025
$76,170
Typical education needed for entry
High school diploma or equivalent
lowest $30,890median wage across 825 detailed occupations, BLS EP 2025–35highest $559,030

Source: U.S. Bureau of Labor Statistics, Employment Projections 2025–35 — Employment by detailed occupation, 2025 and projected 2035

Korea classification links (KSCO)

Links from the current release of the Korea Occupation Direct Crosswalk v1.1, made by AI Changing Work. Relation values are read from the O*NET-SOC occupation side.

KSCO codeKSCO titleRelationStatus
78221인조석 설치원Same scopeconfirmed

Relation and status definitions(kr-direct v1.1)

ILO occupational description

AI Changing Work links the ISCO-08 unit groups below to this occupation by applying the U.S. Bureau of Labor Statistics crosswalks (2018 SOC to 2010 SOC, 2010 SOC to ISCO-08) as published, without case-by-case selection; each link may be whole or partial.

  • ISCO-08 7114Concrete Placers, Concrete Finishers and Related Workers

The definition, tasks and examples below are the ILO's description of that unit group, not of this occupation.

Concrete placers, concrete finishers and related workers erect reinforced concrete frameworks and structures, make forms for moulding concrete, reinforce concrete surfaces, cement openings in walls or casings for wells, finish and repair cement surfaces and carry out terrazzo work.

Tasks

  • (a) constructing and repairing reinforced concrete floors, walls, tanks, silos and other concrete structures;
  • (b) making shuttering or assembling prefabricated forms for moulding concrete;
  • (c) cementing openings in walls or casings for wells;
  • (d) finishing and smoothing surfaces of concrete structures;
  • (e) applying a durable, smooth surfacing composed of cement, sand pigment and marble particles to floors, known as a terrazzo finish;

Example occupations

Cement finisher · Concrete placer · Terrazzo worker

Sources: ILO ISCO-08 — details: Credits

ESCO occupational vocabulary

Each entry below is matched to this occupation in the published ESCO-O*NET Crosswalk (version 1, 2022). The match types are that crosswalk's; the wording is AI Changing Work's.

  • terrazzo setterESCO 7114.2This occupation is broader

    Terrazzo setters create terrazzo surfaces. They prepare the surface, installing strips to divide sections. They then pour the solution containing cement and marble chips. Terrazzo setters finish the floor by polishing the surface to ensure smoothness and shine.

Source: European Commission, DG EMPL — ESCO API 2026-08-08 (bridge v1.2.1)

License: CC BY 4.0 (EU Reuse Notice)

View original

ESCO reuse terms and the modification notice are in Credits.

France classification links (ROME)

AI Changing Work's links between this occupation and ROME 4.0 job profiles, judged with AI models. Relations are read from this occupation's side. Links marked “provisional” were adopted on the judgments of two judges from the same model family (Claude) alone, or by an operator rule applied to their judgments, so they rest on weaker evidence than confirmed links.

ROME codeROME title (French)Relation
F1608Carreleur / CarreleuseThis occupation is narrowerprovisional
F1609Poseur / Poseuse de revêtements de solsRelated, not a matchprovisional

Source: France Travail — Répertoire Opérationnel des Métiers et des Emplois (ROME 4.0), version 61, last updated 15 June 2026 (https://www.data.gouv.fr/datasets/repertoire-operationnel-des-metiers-et-des-emplois-rome). Licence Ouverte 2.0.

ROME codes and titles are reproduced unchanged; the links to O*NET-SOC occupations are AI Changing Work's own judgment and are not a France Travail correspondence.

(AI Changing Work link release: fr-direct v1)

Spain classification links (CNO-11)

AI Changing Work's links between this occupation and CNO-11 occupations, judged with AI models. Relations are read from this occupation's side.

CNO-11 codeCNO-11 title (Spanish)Relation
7111Encofradores y operarios de puesta en obra de hormigónThis occupation is narrower
7240Soladores, colocadores de parquet y afinesRelated, not a match

Source: Instituto Nacional de Estadística (INE), National Classification of Occupations 2011 (CNO-11, Royal Decree 1591/2010) — www.ine.es · Licensed CC BY 4.0. CNO-11 codes and Spanish titles are reproduced unchanged; the links to O*NET occupations are AI Changing Work's own judgment and are not an INE correspondence.

(AI Changing Work link release: es-direct v1)

Germany classification links (KldB)

AI Changing Work's links between this occupation and KldB occupations, judged with AI models. Relations are read from this occupation's side.

KldB codeKldB title (German)Relation
33122Berufe in der Estrich- und Terrazzoverlegung - fachlich ausgerichtete TätigkeitenThis occupation is narrowerprovisional

Source: © Statistik der Bundesagentur für Arbeit — Klassifikation der Berufe 2010 – überarbeitete Fassung 2020, https://statistik.arbeitsagentur.de. KldB codes and titles are reproduced unchanged; the links to O*NET occupations are AI Changing Work's own mapping (eigene Zuordnung) and are not a Bundesagentur für Arbeit correspondence.

(AI Changing Work link release: de-direct v1)

Japan classification links (JSCO)

AI Changing Work's links between this occupation and JSCO occupations, judged with AI models. Relations are read from this occupation's side.

JSCO codeJSCO title (Japanese)Relation
664左官This occupation is narrowerprovisional
662ブロック積・タイル張従事者Related, not a matchprovisional

Source: Ministry of Internal Affairs and Communications (MIC), Japan Standard Occupational Classification (Dec. 2009, MIC Notification No. 555). JSCO codes and Japanese titles are reproduced unchanged; the links to O*NET occupations are AI Changing Work's own judgment and are not a MIC correspondence.

(AI Changing Work link release: jp-direct v1)

Sources, licenses and AI Changing Work's modification and translation notices for this page: Credits & sources