Sheet metal worker: 4- or 5-year apprenticeship, license in some states
Sheet metal workers in construction typically learn through a 4- or 5-year apprenticeship; those in manufacturing learn on the job or at a technical school. Some states require a license.
For: Students who like math, precise cutting and bending, and building ductwork and metal products.
Route 1: Registered Apprenticeship (construction) Most common
Apprenticeship programs are sponsored by unions and businesses. The basic qualifications are being 18 and having a high school diploma or equivalent.
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Start here
High school diploma, age 18
Algebra, geometry, blueprint reading, mechanical drawing and welding classes help.
BLS
Sheet Metal Workers — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 21 Oct 2026
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Find a program
A Registered Apprenticeship
Validated by the U.S. Department of Labor or a State Apprenticeship Agency.
USDOL
What is a Registered Apprenticeship Program?U.S. Department of Labor (Apprenticeship.gov)- Checked
- 21 Oct 2026
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4–5 years
Sheet Metal Worker (RAPIDS 0510)
Time-based term: 8,000 hours of paid on-the-job training (hybrid programs 8,000–9,000), plus technical instruction in blueprints, math, building codes and safety.
USDOL
Approved occupations for Registered Apprenticeship (spreadsheet: RAPIDS code, type, minimum term)U.S. Department of Labor, Office of Apprenticeship (Apprenticeship.gov)- Checked
- 21 Oct 2026
Linked from apprenticeship.gov/apprenticeship-occupations. Term lengths are hours of on-the-job learning; time-based programs list one figure, hybrid programs a range.
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Exam gate
State license exam
Some states require licenses for sheet metal workers (example below).
BLS
Sheet Metal Workers — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 21 Oct 2026
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Goal
Journey worker
Qualified to perform tasks on their own.
BLS
Sheet Metal Workers — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 21 Oct 2026
- Helpers first
- Some workers start out as helpers before entering apprenticeships.
BLS
Sheet Metal Workers — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 21 Oct 2026
Route 2: Technical school or on the job (manufacturing) Factory route
Those employed in manufacturing typically learn on the job or at a technical school; some manufacturers partner with local technical schools.
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Start here
High school diploma or equivalent
GED or HiSETBLS
Sheet Metal Workers — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 21 Oct 2026
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School
Welding and metalworking program
Basic welding and sheet metal fabrication knowledge.
BLS
Sheet Metal Workers — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 21 Oct 2026
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Goal
Sheet metal worker in manufacturing
BLS
Sheet Metal Workers — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 21 Oct 2026
National certifications and federal rules
Federal rules apply in every state; voluntary certifications are ones employers may ask for. State rules are in the matrix below.
- Welding and task certifications
Optional - Not required, but some sheet metal workers become certified in welding and other tasks.
BLS
Sheet Metal Workers — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 21 Oct 2026
State licensing matrix
Only some states license sheet metal workers. One state that does, from its own board's pages:
| State or city | What you need |
|---|---|
| Massachusetts Board of Examiners of Sheet Metal Workers |
Apprentice license: at least 16 and employed by a master sheet metal worker ($65). Journeyperson J-1 (unrestricted): 8,000 hours of licensed apprentice training and 750 hours of Board-approved classes over at least 5 years, a high school diploma or GED, and an exam (PSI). J-2 (restricted to small buildings): 4,800 hours and 450 class hours over at least 3 years. Mass.govApprentice Sheet Metal Worker License applicationMassachusetts Board of Examiners of Sheet Metal Workers
Mass.govJourneyperson Sheet Metal Worker License applicationMassachusetts Board of Examiners of Sheet Metal Workers
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Where to go next
Every trade on one matrix: entry, license, BLS pay and outlook.
What the job is, BLS pay and job outlook, and the tools of the trade.