A day as a Sheet Metal Worker
Most sheet metal workers spend their days on a construction site, not in a shop. You hang the ductwork that moves air through hospitals, schools and office towers, and you fit it around pipe, steel and conduit that got there first. This is a day on a commercial new-build job, with the part where the plan falls apart included.
Hanging duct on a commercial new-build
Stretch, flex and the foreman's plan
The crew meets at the gang box on the third floor deck. Your foreman walks through the day's run: finish the main supply trunk down the east corridor, then start the branch takeoffs to the classrooms. Somebody reads the job hazard analysis out loud, you sign it, and you check your lift inspection sheet before anyone touches a key. On a union job this part is routine. On a small non-union job it can be a quick word in the parking lot.
Setting hangers and lifting the trunk
You shoot or drill anchors into the deck above, run all-thread down to trapeze hangers, and level them with a laser so the duct sits at the height on the coordination drawing. Then you and a partner lift a long section of rectangular trunk on a duct jack, join it to the last piece with TDC flanges and corner clips, and bolt it up. Every joint gets sealed with mastic or tape before you move on, because the inspector and the air balancer will both find a leak you skipped.
The sprinkler main is where your duct goes
This is the moment the drawings stop matching the ceiling. The fire sprinkler crew ran their main a few inches lower than the model showed, right through the space your next fitting needs. You measure the clash, call the foreman over, and he sends a field sketch to the shop for a custom offset. While you wait, you jump to a branch run that isn't blocked. Knowing how to keep working when your plan is stuck is half of what makes a good hand on a jobsite.
Branches, dampers and flex
After lunch you cut in spin-in fittings on the trunk, set volume dampers where the drawings call them out, and run short lengths of insulated flex to the ceiling diffusers. You wrap exposed duct in the mechanical room with foil-faced insulation and pin it. The work gets repetitive here, and that's where mistakes creep in, so you check each damper handle points where the balancer can reach it.
Offset arrives, cleanup, tomorrow's material
The shop truck drops the offset fitting. It fits, you hang it, and the east trunk is closed up. The last half hour goes to sweeping screws and scrap off the deck, charging the drill batteries, and listing what material you'll need staged by the hoist in the morning. You write down the offset on the as-built set so the next trade knows the duct moved.
Field work versus shop work
Sheet metal workers split roughly into two camps, and a lot of people do both over a career. Field workers install on the jobsite: duct, kitchen hoods, flashing, gutters, architectural panels. Shop workers build those pieces: they lay out patterns for transitions and elbows, run the plasma table, form seams on the Pittsburgh machine and the brake, and hand them off on a truck. Apprenticeships usually rotate you through both, and it's worth taking the shop time seriously even if you prefer the field. Once you understand how a fitting is laid out, you stop cursing the shop for sending the wrong one and start writing better field sketches.
Three ways onto a sheet metal crew
A registered apprenticeship
The union route runs through a local joint apprenticeship training center, and non-union contractor groups run their own programs. You work full days on a crew and go to classes on layout, blueprint reading, welding and safety, with raises built in as you progress. Openings come up on a schedule, so check with your local training center early.
Helper for a small HVAC or roofing contractor
Residential HVAC shops and roofing companies hire helpers to carry duct, run flex and bend flashing. It's a faster start with less structure. The catch is that you may learn one contractor's habits rather than the full trade, so plan to move into formal training if you want commercial work.
Shop fabrication first
If you've already run a press brake or shear in a fabrication shop, a mechanical contractor's duct shop will often take you on. From there, asking to go out with a field crew is a common way across. Your shop experience makes you useful on day one.
What Sheet Metal Worker postings ask for
Hiring the most
- Amtrak2
- dover.wd103/Dover2
- AbbVie1
- KBR1
- Nvent1
Remote
0% of openings are fully remote.
Questions people ask
Is a sheet metal worker the same as a sheet metal fabricator?
They overlap, but the titles usually point in different directions. A fabricator tends to work in a shop building precision parts and enclosures on CNC equipment. A sheet metal worker in construction mostly installs HVAC duct, flashing and architectural metal on jobsites, though the trade includes a shop side too.
Do sheet metal workers need a license?
It depends on where you work. Some states and cities license sheet metal or HVAC duct work, and others rely on the apprenticeship journeyworker card and the contractor's license. Rules vary by state, so check with your state's licensing board or your local training center before you assume either way.
How physical is the job?
Fairly physical. You carry and lift duct sections, work overhead from lifts and ladders, and spend some days in hot attics or on cold roofs. The duct jack and the lift do the heaviest lifting, but your shoulders and knees still take a beating, so good habits early matter.
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