Helpers--Brickmasons, Blockmasons, Stonemasons, and Tile and Marble Setters

O*NET-SOC code: 47-3011.00

Help brickmasons, blockmasons, stonemasons, or tile and marble setters by performing duties requiring less skill. Duties include using, supplying, or holding materials or tools, and cleaning work area and equipment.

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
0.09
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 14 hidden tasks

15 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 %
Apply caulk, sealants, or other agents to installed surfaces. 47-3011.00	0.0022100.0

Values in this tab are predicted labels, not observations. Eloundou et al. (2023) published two rating regimes — human raters and GPT-4 — and the β shown here is derived from the GPT-4 rater basis alone; the same task can take a different value under the other regime. The unit and the meaning differ from the observed shares (%) in the other tabs, so do not place them on the same axis.

Task (O*NET 27.2)	βE1 + 0.5 × E2
Cut materials to specified sizes for installation, using power saws or tile cutters. O*NET Task ID 13597	0.0
Erect scaffolding or other installation structures. O*NET Task ID 13598	0.0
Locate and supply materials to masons for installation, following drawings or numbered sequences. O*NET Task ID 13599	0.0
Mix mortar, plaster, and grout, manually or using machines, according to standard formulas. O*NET Task ID 13600	0.0
Apply grout between joints of bricks or tiles, using grouting trowels. O*NET Task ID 13601	0.0
Correct surface imperfections or fill chipped, cracked, or broken bricks or tiles, using fillers, adhesives, or grouting materials. O*NET Task ID 13602	0.0
Modify material moving, mixing, grouting, grinding, polishing, or cleaning procedures, according to installation or material requirements. O*NET Task ID 13603	0.0
Provide assistance in the preparation, installation, repair, or rebuilding of tile, brick, or stone surfaces. O*NET Task ID 13604	0.0
Clean installation surfaces, equipment, tools, work sites, or storage areas, using water, chemical solutions, oxygen lances, or polishing machines. O*NET Task ID 13605	0.0
Transport materials, tools, or machines to installation sites, manually or using conveyance equipment. O*NET Task ID 13606	0.0
Move or position materials such as marble slabs, using cranes, hoists, or dollies. O*NET Task ID 13607	0.0
Remove excess grout or residue from tile or brick joints, using sponges or trowels. O*NET Task ID 13608	0.0
Remove damaged tile, brick, or mortar, and clean or prepare surfaces, using pliers, hammers, chisels, drills, wire brushes, or metal wire anchors. O*NET Task ID 13609	0.0
Arrange or store materials, machines, tools, or equipment. O*NET Task ID 13610	0.0
Apply caulk, sealants, or other agents to installed surfaces. O*NET Task ID 13611	0.0

β = E1 + 0.5 × E2 · E1 = tasks where direct LLM access alone cuts time by at least 50%, E2 = tasks where software built on top of an LLM cuts time by at least 50%. Values take only 0 / 0.5 / 1.0.

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 (15)

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 materials to specified sizes for installation, using power saws or tile cutters.	Core
Erect scaffolding or other installation structures.	Core
Locate and supply materials to masons for installation, following drawings or numbered sequences.	Core
Mix mortar, plaster, and grout, manually or using machines, according to standard formulas.	Core
Apply grout between joints of bricks or tiles, using grouting trowels.	Core
Correct surface imperfections or fill chipped, cracked, or broken bricks or tiles, using fillers, adhesives, or grouting materials.	Core
Modify material moving, mixing, grouting, grinding, polishing, or cleaning procedures, according to installation or material requirements.	Core
Provide assistance in the preparation, installation, repair, or rebuilding of tile, brick, or stone surfaces.	Core
Clean installation surfaces, equipment, tools, work sites, or storage areas, using water, chemical solutions, oxygen lances, or polishing machines.	Core
Transport materials, tools, or machines to installation sites, manually or using conveyance equipment.	Core
Move or position materials such as marble slabs, using cranes, hoists, or dollies.	Core
Remove excess grout or residue from tile or brick joints, using sponges or trowels.	Core
Remove damaged tile, brick, or mortar, and clean or prepare surfaces, using pliers, hammers, chisels, drills, wire brushes, or metal wire anchors.	Core
Arrange or store materials, machines, tools, or equipment.	Core
Apply caulk, sealants, or other agents to installed surfaces.	Core

Anthropic, "What work can robots do?"2026-09

1.31/ 3· Robot exposure index

0 none3 unstructured settings

Scale, basis and source

Each physical task is graded 0–3 by the setting in which robots that have been deployed, sold or demonstrated could do it (0 none · 1 purpose-built robot settings such as a fenced machine cell or a bottling line · 2 structured facilities such as a hospital pharmacy or a container port · 3 unstructured settings such as a private home or a construction site), and the grades are averaged by share of working time

Physical tasks among this occupation's O*NET 29.3 tasks

Anthropic estimated the grades and time shares with Claude Opus 5 using web search, as of 2026.

Source dataset

The robot exposure index is a different measure from the AI exposure figures on this site and cannot be added to or compared with them. It does not measure actual adoption or cost, and 0 also covers occupations with no physical tasks.

Tier of each physical task

Robot environment tiers (E0–E3)

E0 noneDetails
Rated not doable by robots that have been deployed, sold or demonstrated, even in a purpose-built setting
E1 purpose-built robot settingsDetails
Rated doable in a setting built around the machine, such as a fenced machine cell or a bottling line
E2 structured facilitiesDetails
Rated doable in a human work facility that an institution keeps to a working standard, such as a hospital pharmacy or a container port
E3 unstructured settingsDetails
Rated doable in a setting that no institution keeps to a working standard, such as a private home or a construction site

Only tasks classified as physical are listed; other tasks have no tier in the source.

Task (O*NET 29.3)	Robot environment tier
Cut materials to specified sizes for installation, using power saws or tile cutters.	E1 purpose-built robot settings
Erect scaffolding or other installation structures.	E0 none
Locate and supply materials to masons for installation, following drawings or numbered sequences.	E2 structured facilities
Mix mortar, plaster, and grout, manually or using machines, according to standard formulas.	E1 purpose-built robot settings
Apply grout between joints of bricks or tiles, using grouting trowels.	E3 unstructured settings
Correct surface imperfections or fill chipped, cracked, or broken bricks or tiles, using fillers, adhesives, or grouting materials.	E1 purpose-built robot settings
Modify material moving, mixing, grouting, grinding, polishing, or cleaning procedures, according to installation or material requirements.	E1 purpose-built robot settings
Provide assistance in the preparation, installation, repair, or rebuilding of tile, brick, or stone surfaces.	E1 purpose-built robot settings
Clean installation surfaces, equipment, tools, work sites, or storage areas, using water, chemical solutions, oxygen lances, or polishing machines.	E1 purpose-built robot settings
Transport materials, tools, or machines to installation sites, manually or using conveyance equipment.	E2 structured facilities
Move or position materials such as marble slabs, using cranes, hoists, or dollies.	E2 structured facilities
Remove excess grout or residue from tile or brick joints, using sponges or trowels.	E1 purpose-built robot settings
Remove damaged tile, brick, or mortar, and clean or prepare surfaces, using pliers, hammers, chisels, drills, wire brushes, or metal wire anchors.	E1 purpose-built robot settings
Arrange or store materials, machines, tools, or equipment.	E2 structured facilities
Apply caulk, sealants, or other agents to installed surfaces.	E1 purpose-built robot settings

Employment outlook (BLS)

Employment, 2025: 14K
Projected employment, 2035: 13K
Change (2025–35): -11.7%
Median annual wage, 2025: $47,550
Typical education needed for entry: No formal educational credential

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 code	KSCO title	Relation	Status
91001	건설 단순 종사원	This occupation is narrower	confirmed

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 9313Building Construction Labourers

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

Building construction labourers perform routine tasks in connection with building construction and demolition work.

Tasks

(a) cleaning used building bricks and doing other simple work on demolition sites;
(b) mixing, pouring and spreading materials such as concrete, plaster and mortar;
(c) digging and filling holes and trenches using hand held tools;
(d) spreading sand, soil, gravel and similar materials;
(e) loading and unloading construction materials, excavated material and equipment and transporting them around construction sites using wheelbarrows, hods and hand trucks;
(f) cleaning work sites and removing obstructions.

Example occupations

Bricklayer's assistant · Construction labourer (building work) · Demolition labourer · Hod carrier

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.

bricklayerESCO 7112.1Overlapping, not the same
Bricklayers assemble brick walls and structures by skilfully laying the bricks in an established pattern, using a binding agent like cement to bond the bricks together. They then fill the joints with mortar or other suitable materials.
stonemasonESCO 7113.1Overlapping, not the same
Stonemasons manually carve and assemble stone for construction purposes. While CNC operated carving equipment is the industry standard, artisanal carving for ornamental stone is still done manually.

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 code	ROME title (French)	Relation
F1704	Manœuvre du Bâtiment et des Travaux Publics	This occupation is narrowerprovisional
F1608	Carreleur / Carreleuse	Related, not a matchprovisional
F1703	Maçon / Maçonne	Related, 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 code	CNO-11 title (Spanish)	Relation
9602	Peones de la construcción de edificios	This occupation is narrower

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 code	KldB title (German)	Relation
32101	Berufe im Hochbau (ohne Spezialisierung) - Helfer-/Anlerntätigkeiten	This occupation is narrowerprovisional
33101	Berufe in der Bodenverlegung (ohne Spezialisierung) - Helfer-/Anlerntätigkeiten	Related, not a matchprovisional

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 code	JSCO title (Japanese)	Relation
662	ブロック積・タイル張従事者	This occupation is narrowerprovisional
739	その他の運搬・清掃・包装等従事者	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