Everyone quotes a skilled-trades shortage number. Almost nobody is measuring the same thing.
Lightcast has now published a standardized definition: 135 six-digit Standard Occupational Classification codes, selected as work that is hands-on and in-person, requires no four-year degree, and does require an apprenticeship, a certificate, education up to an associate’s, or substantial on-the-job training. The report, “Defining the Skilled Trades: A Data-Driven Blueprint for the Future,” was picked up by three trade outlets on August 26. Lightcast publishes the full 135-code list as a free download.
The denominator is the news
Against that definition, the trades hold roughly 20 million U.S. jobs, about 9 percent of the workforce, generating around 2.1 million annual openings. That is roughly three openings for every completer of a relevant training program, and an annual gap of about 1.3 million workers. Seven of the ten most in-demand skilled-trade occupations are already in significant shortage.
The reason the SOC list matters more than the gap number is that it makes regional pipeline math checkable. A contractor, a CTE director or a workforce board can now run the same calculation against the same occupational universe and compare answers. Until now, one organisation’s “skilled trades” included medical technologists and another’s didn’t, and every shortage figure in circulation was quietly incommensurable. Anyone about to spend money on a training partnership should start by asking whether the local program mix maps to the occupations that are actually short.
It’s an actuarial problem, not a marketing problem
About 40 percent of annual openings are driven by retirement, and one in four of these workers is 55 or older. That reframes the whole discussion. Recruitment campaigns address the flow of new entrants; they do nothing about a cohort ageing out on a schedule that was set decades ago. The gap closes through completion rates and retention, or it doesn’t close.
The demand side keeps generating evidence. Georgia’s $392 million Capitol restoration and legislative office building has to pause work on the Capitol every January for the legislative session, which means the trades on that job come off and go somewhere else for weeks at a time, then come back. Phased public work only functions when there’s a deep enough bench in the region to absorb the gaps. Hartsfield-Jackson’s Concourse D widening runs the opposite pattern, compressing skilled work into night windows on a live airfield. Both are bidding into the same pool.
Handle the numbers with care
Every figure here comes from Lightcast alone, with no independent replication, and the report page carries no publication date, so late August is the best available dating. Note also that the 1.3 million gap differs from Lightcast’s own prior research, which reported a shortfall above 1.7 million. The likeliest explanation is the narrower 135-occupation universe rather than any improvement in conditions, and it should not be read as a trend. The report is at Lightcast, with coverage from HR Dive.