← Risk register SOC 47-2051 · reviewed 2026-08-11

Cement Masons and Concrete Finishers

206,170 US workers · median $57,020/yr · Construction

EXPOSED

Screeding, floating, troweling, edging and joint-cutting concrete on a clock set by the mix's cure time is almost entirely embodied craft work — language models touch none of it, and existing power screeds and troweling robots still need a finisher reading the surface by feel. The exposure is not the trowel work but everything around it: takeoffs, yardage estimating, scheduling, and bid paperwork are already being drafted by software. No license is legally required in most states, buyers rarely pick a specific finisher, and the general contractor owns the consequential calls, so the score rests almost entirely on the body.

10-year outlook: Demand tracks construction spending, not AI: the trowel work stays human through the 2030s while estimating and paperwork thin out, so the money migrates to certified decorative finishers and pour foremen.

US employment, 2019–2025+5.1%
196,120206,170 workers

Dipped in 2020, then grew past where it started.

Median pay $44,810 → $57,020 +1.8% in real terms (nominal +27.2%, less ~25% US inflation over the period)

The job count is not the verdict

This line is counted by the Bureau of Labor Statistics — the one figure on this page that isn't a judgement of ours. Headcount moves on demand, offshoring, demographics and the business cycle, and automation is one term among several, often not the loudest.

So a falling line is not evidence that AI did it, and a rising one is not evidence that it won't. Both happen in this register: some occupations resist automation and shrink anyway, others are highly automatable and keep growing. The marked year is 2020.

BLS projection, 2024–2034

+1.8% 206,700 → 210,400 on the projections basis

Growing, and only partly exposed

The BLS expects +1.8% more of these jobs by 2034, and at 58/100 the work is only partly exposed — some tasks are automatable, the core of the job is not. Nothing here is in tension.

Different clocks. The score is what current AI could do to this work today. The projection is how many of these jobs will exist in 2034. Everything between the two — how fast employers actually adopt, whether demand grows in the meantime — is why they can point opposite ways without either being wrong.

~14,300 openings a year on average, including replacing people who leave.

One email if this score changes. Watch as many occupations as you like from the same address — no account, and nothing is sent on a schedule, only when a verdict actually moves.

Also known as — 24 job titles this covers

Titles reported by people doing this work, from the US Department of Labor's O*NET survey. If your job title is here, this page is about your work even though the name doesn't match.

MasonCementerFinisherCement MasonCurb BuilderJoint SetterFloor GrinderCement PatcherConcrete MasonFloat OperatorJoint FinisherCement FinisherConcrete CutterConcrete RubberConcrete SetterColumn PrecasterConcrete FloaterConcrete LaborerConcrete PointerConcrete FinisherConcrete PolisherConcrete SmootherCement Gun OperatorConcrete Specialist

Score — 58/100 resistance

Holding it up: embodiment (20/20). Weakest point: liability shield (3/20).

Five dimensions, 0–20 each, summed. Higher means more protected. The arithmetic is shown so you can check it: 19 + 20 + 3 + 7 + 9 = 58. · Scored 2026-08-11, and re-examined when evidence accumulates rather than on a schedule.

Task resistance 19/20

Tasks largely resist digitisation The core sequence — placing, screeding, bull-floating, waiting for bleed water to leave, then power-troweling to a hard burnish — is timed off a slab that keeps changing under your hands, and no software output substitutes for kneeling on a board and reading whether the surface will take a blade yet; the one point off 20 is the office side (yardage takeoffs, bid sheets, joint layout drawings) that estimating software already handles.

Embodiment 20/20

Hands-on in uncontrolled environments You work bent over wet mix in whatever weather the pour was scheduled for, hauling hose, running a ride-on trowel, cutting control joints with a walk-behind saw, and stripping forms on uneven ground — there is no version of this performed remotely or from a controlled bay, which is exactly what a 20 describes.

Liability shield 3/20

No licence, no signature requirement Most states license the contractor entity, not the finisher; ACI Flatwork Finisher certification and an OSHA 10 card help you get hired but nothing you hold personally carries statutory liability, and a failed slab becomes the GC's and the concrete supplier's fight over mix design and subgrade — the 3 rather than 0 reflects that certification is increasingly written into spec sheets on commercial flatwork.

Trust premium 7/20

Some relationship component Repeat business is real — a builder who has seen your F-number results on a warehouse floor or your broom finish on driveways calls your crew back — but the relationship sits with the concrete sub's owner, not the individual finisher, and on most jobs the homeowner never learns your name, which puts it at the low end of the relationship band rather than mid.

Judgment & accountability 9/20

Meaningful discretion You decide when to start floating, whether to hit it with a fresno or wait, how much to fight a hot windy day, and when to tell the truck the load is too wet to place — real calls with expensive consequences, but slump, thickness, rebar spacing and cure method come off the spec and submittal, so the ambiguous high-stakes decisions belong to the engineer and GC above you.

Confidence: high · reviewed 2026-08-11 · how scoring works

What this job involves — and which parts are yours

The verdict above describes this occupation as a whole. Almost nobody does the typical version of a job — tick what's actually in your week and see how your own mix sits.

AI already does these at usable quality

These still need a person

Active moats on the surviving side: embodiment, physical-presence

How to future-proof this job

Training paths for your skill gaps: MIT OpenCourseWare — full course materials across every department, free free · MIT OpenCourseWare — operations management free · Coursera — engineering and procurement courses, auditable without paying free to audit · Khan Academy — physics, chemistry and biology from the ground up free · Coursera — project coordination and cross-team delivery free to audit · edX — operations management and process monitoring courses free to audit · OSHA Outreach Training — the 10- and 30-hour cards most employers ask for low

All 35 skills ranked by how many jobs they open →

Where this experience transfers — occupations you could move toward

Computed from U.S. Dept. of Labor O*NET skill and knowledge profiles: high overlap with what you already do, a materially higher resistance score, no large jump in required training, and no licence you would have to start a new pipeline to get. Targets that pay meaningfully less, that are themselves COOKED, or whose own headcount is falling are excluded — a move into a shrinking trade is not an escape.

Brickmasons and Blockmasons SAFE · 68/100 · you already have ~78% of the skill profile

Skills to close: Active Learning, Operations Analysis, Equipment Selection, Science

Roofers SAFE · 70/100 · you already have ~76% of the skill profile

Skills to close: Active Learning, Coordination

Structural Iron and Steel Workers SAFE · 68/100 · you already have ~76% of the skill profile

Skills to close: Active Learning, Operations Monitoring, Operation and Control, Operations Analysis

What would move this back up — beyond any one person

The moves above are yours to make. This is the other half: what would have to change in the world for the occupation itself to score higher. None of it is in any one person's gift, but it is where the floor actually comes from. Scores here are not a one-way ratchet. Only two of the five dimensions — task resistance and embodiment — track what machines can do. The other three track law, what buyers will pay for, and who is answerable, and those move in both directions, often in response to the same pressure AI creates. If every lever below landed, this occupation would score around 73/100 — SAFE.

5 specific changes that would raise this score
  • already happening liability shield +3

    Owner and insurer specification language — already common in large industrial and data-center slab contracts — requiring a named ACI-certified finisher present for every placement as a condition of the workmanship warranty or builder's risk coverage. This is contractual rather than statutory but attaches consequence to a specific individual.

  • already happening task resistance +1

    Genuine two-tier structure: if laser screeds, ride-on trowels, and robotic finishers absorb the open-field slab work, the residual job is edges, curbs, columns, penetrations, decorative and repair work, and remediation of failed pours — the tier that resists mechanization. Watch fleet adoption rates for Somero and Ligchine screeds on commercial flatwork.

  • plausible liability shield +5

    State or municipal adoption of a mandatory concrete finisher / flatwork license with personal sign-off on placement records — the model exists in Louisiana's contractor licensing and in ACI's certification tiers (ACI Flatwork Finisher/Technician). If a jurisdiction moved ACI Flatwork Finisher certification from a spec requirement into a code requirement, with the certified finisher named on the pour record for slab flatness/levelness (F-F/F-L per ASTM E1155) disputes, the shield rises materially.

  • plausible judgment accountability +4

    Formalizing the finisher's authority to reject a truck or stop a pour on slump, air content, or temperature grounds — some union agreements and ACI 301 acceptance procedures already vest this call at the point of placement. If the reject decision is documented under the finisher's name rather than the superintendent's, the role owns a consequential, ambiguous, unrecoverable call.

  • plausible trust premium +2

    Only in the decorative/architectural niche — stamped, polished, and exposed-aggregate finishes sold by named craftsman on a residential or hospitality job. This is a small fraction of the 206,170 and there is no route to a trust premium on structural or industrial flatwork, where the buyer sees a commodity slab.

The limit. Embodiment and task resistance are already near maximum, so there is little headroom there; realistic upside is roughly 8-12 points concentrated in licensure and named accountability. The binding constraint is not AI capability but wage pressure, crew size reduction from screed automation, and immigration/labor supply — none of which the register measures.

These are conditions, not forecasts — what would have to happen, not what will. Specific rules, cases and bills are named so you can go and check whether they exist and where they stand; verify before relying on any of them. Nothing here is legal or financial advice.

Where this work is, and what it pays there

BLS metro figures for 334 areas. The verdict above does not change by city — the rubric judges what the work involves, not where it happens — but pay and headcount do, and the national median hides a very wide range.

Most of these jobs

New York-Newark-Jersey City, NY-NJ 8,390 $65,670 +15%
Dallas-Fort Worth-Arlington, TX 7,920 $48,770 -14%
Los Angeles-Long Beach-Anaheim, CA 7,810 $63,790 +12%
Houston-Pasadena-The Woodlands, TX 7,700 $46,600 -18%
Phoenix-Mesa-Chandler, AZ 6,120 $59,260 +4%
Riverside-San Bernardino-Ontario, CA 4,740 $59,550 +4%
Chicago-Naperville-Elgin, IL-IN 3,890 $81,020 +42%
Miami-Fort Lauderdale-West Palm Beach, FL 3,820 $48,860 -14%

Best paid

Kahului-Wailuku, HI 60 $104,450 +83%
Urban Honolulu, HI 500 $96,260 +69%
Fairbanks-College, AK 40 $92,410 +62%

Percentages are against this occupation's national median of $57,020. Counts are jobs in that metro, not vacancies. Metros where the BLS suppressed the cell are absent rather than shown as zero.

Who is actually doing this — nobody, on the record

We have no reported case of a named organisation automating this occupation. Not one deployment, not one announcement.

That is worth saying out loud next to a score of 58. The verdict above is about what the work exposes — what current AI could do to these tasks. It is not a claim that anyone has done it. For this occupation those two things have come apart completely: the capability argument is on this page, and the evidence column is empty.

Read that as a gap in the reporting we can see, not proof of absence — the dispatch runs on English-language feeds and misses plenty. If you know of a case, tell us, or add a field report from inside the job.

Quick take — do you do this job?

Has AI actually changed your work? One tap, anonymous, and the running tally is public. Nothing else is asked of you.

Self-reported and unverified — a sentiment signal, not a survey. One response per person per occupation; you can change your answer.

Field reports — what people say has changed

No field reports yet. A written account takes a paragraph rather than a tap, goes to an editor before it appears, and is the one thing on this page the rubric cannot produce on its own.

File a field report

Concrete beats general: a tool that arrived, a task that moved, a headcount decision you watched happen. Don't include anything that identifies you or your employer if that would put you at risk.

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