An HVAC sheet metal detailer turns engineered mechanical designs into the information a sheet metal shop and field crew build from: dimensioned shop drawings, 3D BIM coordination models, and duct routed so it fits the building.
It is an off-tools desk serving sheet metal contractors.
This page covers what the work is, the software it runs on, the routes in, and what the pay data does — and does not — show.
What a sheet metal detailer does: the drawings and the coordination
Detailing is the desk between the engineered design and the metal.
On a commercial job, the mechanical drawings in the contract set show where duct is meant to go; the detailer works that intent into fabrication- and installation-level information — dimensioned shop drawings for straight duct and fittings, hanger and routing details, and a 3D model of the sheet metal systems used to coordinate with the other trades before anything is cut.
BIM — building information modeling — is the modeling half of that output.
The trade underneath is the one this site covers: sheet metal workers fabricate, assemble, install, and repair sheet metal products and equipment — ducts, control boxes, drainpipes, and furnace casings, in O*NET's definition of the occupation (SOC 47-2211.00).
The detailer feeds that work.
The drawings and the model are what the sheet metal worker shop builds from and what the field crew hangs from, which is why the seat sits close to both without being either.
The title family is wide — sheet metal detailer, mechanical detailer, HVAC detailer, HVAC BIM modeler, HVAC CAD drafter — and this page treats them as one desk family: someone who produces construction-level sheet metal information on a computer.
What makes the seat detailing rather than design is the input.
The engineering decisions — sizes, layouts, system selections — arrive from the design side; the detailer's job is to make them buildable and buildable-together.
That is also where detailing hands off to the design side.
An HVAC designer makes the sizing and layout decisions, and the designer-and-engineer ladder above that role is its own subject.
Coordination, the second half of the detailing desk, is where the model earns its keep: duct modeled at real dimensions can be checked against structure, piping, electrical, and the ceiling space before fabrication, so clashes surface on a screen instead of in a building under construction.
The software: CAD drafting and BIM modeling
The software on this desk splits into two working layers.
The drafting layer is 2D CAD work — producing and revising the dimensioned shop drawings.
The modeling layer is BIM work: building the duct systems in three dimensions, running clash checks against the other trades' models, and issuing the coordinated model and its drawings.
Tools such as AutoCAD and Revit come up in these layers.
Which tools a given desk runs is up to the employer — the job ad is the place to check.
Treat the ad as the software list, not any general rule about the trade.
What the desk produces has to survive downstream.
Shop drawings go to the fabricators, who turn flat sheet into straight duct, elbows, and transitions; in shops whose fabrication equipment takes machine files, the detailer's geometry feeds that equipment directly.
That downstream test is the skill the software list can't show: a drawing is only as good as what the shop can actually build from it, and a detailer who understands the duct knows where a drawing will break.
The learning order follows from that.
Reading construction drawings and knowing how duct goes together transfer across tools; menus and keystrokes are per-employer.
A candidate who can read a mechanical drawing set and explain how a fitting gets made is describing the transferable half of the job — the software is the other half, learned on whichever tools the employer runs.
Field experience or school: the routes into detailing
Two backgrounds can feed a detailing desk, and each answers one half of the job.
The route up from the field starts in the trade itself — apprenticeship, shop time, installation work — and its asset is constructability: you have hung the duct, so you know what a hanger needs, what a fitting costs the schedule, and where a clean-looking drawing meets a beam.
The structured version of that route is a registered sheet metal apprenticeship, which SMART's International Training Institute describes as four or five years combining on-the-job training with classes, at little to no tuition; the ITI is jointly sponsored by SMART and SMACNA, the contractors' association, and counts more than 14,000 registered apprentices in the US and Canada.
The route in from the desk side is drafting and CAD training — a drafting program, CAD coursework, or software hours built up on your own — and its asset is the tool: drawing production, model navigation, drawing issue.
What it lacks is the building, and the gap shows up in exactly the place the first section described: constructability.
Closing that gap means leaning on the shop and the field crews for what you haven't stood under.
Which background an opening wants is the employer's call, and the ad is the requirements list: it may ask for field years, software proficiency, or both.
The licence example our research holds for this trade is field-side: Philadelphia requires a Sheet Metal Technician License to install, maintain and service sheet metal used in HVAC systems in that city.
Our research holds no licence specific to detailing desks; if a posting lists a credential for one, it is the employer's requirement.
The full route into the trade itself — intake, apprenticeship, licensing checks — is in our guide to how to become a sheet metal worker.
Licensing is local — verify before you commit
Pay and demand: what the data shows
Start with what the data does not have.
Our research holds no wage figure specific to sheet metal detailers, and it does not establish which federal occupation code a detailing desk is counted under.
The series we can cite covers the trade the desk feeds — Sheet Metal Workers (SOC 47-2211), whose settings run from duct installation to shop fabrication to architectural sheet metal.
Read it as the trade's frame, not a detailer figure.
In the May 2025 OEWS survey, released May 15, 2026, Sheet Metal Workers (SOC 47-2211) earned a median of $29.71 per hour, or $61,800 per year, and a mean of $32.62 per hour ($67,850 per year).
The 10th percentile earned $18.57 an hour ($38,630 a year) and the 90th earned $50.79 ($105,650).
The survey measures base pay: overtime, shift differentials, and nonproduction bonuses are excluded, so real annual earnings can run higher for people who put in extra hours.
Within NAICS 238220 — plumbing, heating, and air-conditioning contractors, the industry category that covers the mechanical contractors — the trade's median was $69,830 across 51,680 wage-and-salary jobs.
The state and metro tables are on our sheet metal worker salary page.
Demand reads trade-wide too.
Payroll employment stood at 119,770 in May 2025, with the most jobs in Texas, California, Florida, New York, and Indiana.
The industry group employing the most sheet metal workers is Building Equipment Contractors, at 53,690 jobs.
BLS projects 2.5% employment growth from 2025 to 2035 (131.1k to 134.4k jobs including the self-employed), below the 3.5% average for all occupations, with about 9,800 openings a year.
None of that is a detailer-specific forecast: the projections cover the trade as a whole, and we have no verified data that isolates detailing demand.
Read it as the weather around the seat, not the seat itself.
As a career move, the desk trades the field's physical work for screen work — the sheet metal worker hub maps the rest of that ladder, and the salary page above carries the state and metro tables.
Career information, not legal advice. Pay figures on this page are BLS wage-survey data for the sheet metal trade, not a detailer-specific benchmark; licensing questions go to your state licensing board, or the city or county office where licensing is local.