# Structural Iron and Steel Workers > Raise, place, and unite iron or steel girders, columns, and other structural members to form completed structures or structural frameworks. May erect metal storage tanks and assemble prefabricated metal buildings. - Code: 47-2221.00 (O*NET-SOC; SOC 2018 47-2221) - Family: [Construction & Extraction](https://foundation.org.ai/occupations#family-47), one of its 65 occupations - Tasks: 19 tasks (15 core and 4 supplemental) - Page: https://foundation.org.ai/occupations/47-2221.00 - JSON: https://foundation.org.ai/data/tasks/47-2221.00.json ## What the work is made of 1. Read specifications or blueprints to determine the locations, quantities, or sizes of materials required. Core task · Task 11544 · Rated by 102 people who do the job, July 2015 2. Connect columns, beams, and girders with bolts, following blueprints and instructions from supervisors. Core task · Task 11546 · Rated by 105 people who do the job, July 2015 3. Bolt aligned structural steel members in position for permanent riveting, bolting, or welding into place. Core task · Task 11548 · Rated by 105 people who do the job, July 2015 4. Fasten structural steel members to hoist cables, using chains, cables, or rope. Core task · Task 11553 · Rated by 105 people who do the job, July 2015 5. Hoist steel beams, girders, or columns into place, using cranes or signaling hoisting equipment operators to lift and position structural steel members. Core task · Task 20795 · Rated by 102 people who do the job, July 2015 6. Verify vertical and horizontal alignment of structural steel members, using plumb bobs, laser equipment, transits, or levels. Core task · Task 11545 · Rated by 102 people who do the job, July 2015 7. Cut, bend, or weld steel pieces, using metal shears, torches, or welding equipment. Core task · Task 11552 · Rated by 105 people who do the job, July 2015 8. Erect metal or precast concrete components for structures, such as buildings, bridges, dams, towers, storage tanks, fences, or highway guard rails. Core task · Task 11556 · Rated by 105 people who do the job, July 2015 9. Force structural steel members into final positions, using turnbuckles, crowbars, jacks, or hand tools. Core task · Task 11555 · Rated by 103 people who do the job, July 2015 10. Pull, push, or pry structural steel members into approximate positions for bolting into place. Core task · Task 11551 · Rated by 103 people who do the job, July 2015 11. Unload and position prefabricated steel units for hoisting, as needed. Core task · Task 11557 · Rated by 100 people who do the job, July 2015 12. Drive drift pins through rivet holes to align rivet holes in structural steel members with corresponding holes in previously placed members. Core task · Task 11558 · Rated by 103 people who do the job, July 2015 13. Assemble hoisting equipment or rigging, such as cables, pulleys, or hooks, to move heavy equipment or materials. Core task · Task 11554 · Rated by 103 people who do the job, July 2015 14. Fabricate metal parts, such as steel frames, columns, beams, or girders, according to blueprints or instructions from supervisors. Core task · Task 11550 · Rated by 102 people who do the job, July 2015 15. Dismantle structures or equipment. Core task · Task 11559 · Rated by 103 people who do the job, July 2015 16. Ride on girders or other structural steel members to position them, or use rope to guide them into position. Supplemental task · Task 11549 · Rated by 103 people who do the job, July 2015 17. Hold rivets while riveters use air hammers to form heads on rivets. Supplemental task · Task 11563 · Rated by 103 people who do the job, July 2015 18. Insert sealing strips, wiring, insulating material, ladders, flanges, gauges, or valves, depending on types of structures being assembled. Supplemental task · Task 11560 · Rated by 103 people who do the job, July 2015 19. Place blocks under reinforcing bars used to reinforce floors. Supplemental task · Task 11562 · Rated by 103 people who do the job, July 2015 ## More in Construction & Extraction - [Boilermakers](https://foundation.org.ai/occupations/47-2011.00): 17 tasks - [Brickmasons and Blockmasons](https://foundation.org.ai/occupations/47-2021.00): 14 tasks - [Carpenters](https://foundation.org.ai/occupations/47-2031.00): 29 tasks - [Carpet Installers](https://foundation.org.ai/occupations/47-2041.00): 16 tasks - [Cement Masons and Concrete Finishers](https://foundation.org.ai/occupations/47-2051.00): 26 tasks - [Construction and Building Inspectors](https://foundation.org.ai/occupations/47-4011.00): 19 tasks - [Construction and Related Workers, All Other](https://foundation.org.ai/occupations/47-4099.00): no tasks listed - [Construction Laborers](https://foundation.org.ai/occupations/47-2061.00): 27 tasks - [Continuous Mining Machine Operators](https://foundation.org.ai/occupations/47-5041.00): 15 tasks - [Derrick Operators, Oil and Gas](https://foundation.org.ai/occupations/47-5011.00): 15 tasks - 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[Floor Layers, Except Carpet, Wood, and Hard Tiles](https://foundation.org.ai/occupations/47-2042.00): 14 tasks - [Floor Sanders and Finishers](https://foundation.org.ai/occupations/47-2043.00): 7 tasks - [Glaziers](https://foundation.org.ai/occupations/47-2121.00): 27 tasks - [Hazardous Materials Removal Workers](https://foundation.org.ai/occupations/47-4041.00): 21 tasks - [Helpers--Brickmasons, Blockmasons, Stonemasons, and Tile and Marble Setters](https://foundation.org.ai/occupations/47-3011.00): 15 tasks - [Helpers--Carpenters](https://foundation.org.ai/occupations/47-3012.00): 18 tasks - [Helpers--Electricians](https://foundation.org.ai/occupations/47-3013.00): 25 tasks - [Helpers--Extraction Workers](https://foundation.org.ai/occupations/47-5081.00): 14 tasks - [Helpers--Painters, Paperhangers, Plasterers, and Stucco Masons](https://foundation.org.ai/occupations/47-3014.00): 11 tasks - [Helpers--Pipelayers, Plumbers, Pipefitters, and Steamfitters](https://foundation.org.ai/occupations/47-3015.00): 15 tasks - [Helpers--Roofers](https://foundation.org.ai/occupations/47-3016.00): 18 tasks - [Helpers, Construction Trades, All Other](https://foundation.org.ai/occupations/47-3019.00): no tasks listed - [Highway Maintenance Workers](https://foundation.org.ai/occupations/47-4051.00): 19 tasks - [Insulation Workers, Floor, Ceiling, and Wall](https://foundation.org.ai/occupations/47-2131.00): 10 tasks - [Insulation Workers, Mechanical](https://foundation.org.ai/occupations/47-2132.00): 9 tasks - [Loading and Moving Machine Operators, Underground Mining](https://foundation.org.ai/occupations/47-5044.00): 25 tasks - [Operating Engineers and Other Construction Equipment Operators](https://foundation.org.ai/occupations/47-2073.00): 26 tasks - [Painters, Construction and Maintenance](https://foundation.org.ai/occupations/47-2141.00): 19 tasks - [Paperhangers](https://foundation.org.ai/occupations/47-2142.00): 20 tasks - [Paving, Surfacing, and Tamping Equipment Operators](https://foundation.org.ai/occupations/47-2071.00): 20 tasks - [Pile Driver Operators](https://foundation.org.ai/occupations/47-2072.00): 5 tasks - [Pipelayers](https://foundation.org.ai/occupations/47-2151.00): 14 tasks - [Plasterers and Stucco Masons](https://foundation.org.ai/occupations/47-2161.00): 15 tasks - [Plumbers, Pipefitters, and Steamfitters](https://foundation.org.ai/occupations/47-2152.00): 30 tasks - [Rail-Track Laying and Maintenance Equipment Operators](https://foundation.org.ai/occupations/47-4061.00): 26 tasks - [Reinforcing Iron and Rebar Workers](https://foundation.org.ai/occupations/47-2171.00): 7 tasks - [Rock Splitters, Quarry](https://foundation.org.ai/occupations/47-5051.00): 9 tasks - [Roof Bolters, Mining](https://foundation.org.ai/occupations/47-5043.00): 14 tasks - [Roofers](https://foundation.org.ai/occupations/47-2181.00): 27 tasks - [Rotary Drill Operators, Oil and Gas](https://foundation.org.ai/occupations/47-5012.00): 20 tasks - [Roustabouts, Oil and Gas](https://foundation.org.ai/occupations/47-5071.00): 13 tasks - [Segmental Pavers](https://foundation.org.ai/occupations/47-4091.00): 12 tasks - [Septic Tank Servicers and Sewer Pipe Cleaners](https://foundation.org.ai/occupations/47-4071.00): 22 tasks - [Service Unit Operators, Oil and Gas](https://foundation.org.ai/occupations/47-5013.00): 19 tasks - [Sheet Metal Workers](https://foundation.org.ai/occupations/47-2211.00): 19 tasks - [Solar Energy Installation Managers](https://foundation.org.ai/occupations/47-1011.03): 15 tasks - [Solar Photovoltaic Installers](https://foundation.org.ai/occupations/47-2231.00): 26 tasks - [Solar Thermal Installers and Technicians](https://foundation.org.ai/occupations/47-2152.04): 21 tasks - [Stonemasons](https://foundation.org.ai/occupations/47-2022.00): 17 tasks - [Tapers](https://foundation.org.ai/occupations/47-2082.00): 16 tasks - [Terrazzo Workers and Finishers](https://foundation.org.ai/occupations/47-2053.00): 26 tasks - [Tile and Stone Setters](https://foundation.org.ai/occupations/47-2044.00): 25 tasks - [Underground Mining Machine Operators, All Other](https://foundation.org.ai/occupations/47-5049.00): no tasks listed - [Weatherization Installers and Technicians](https://foundation.org.ai/occupations/47-4099.03): 20 tasks ## Where this comes from Quoted from O*NET 29.0, U.S. Department of Labor, Employment and Training Administration, under CC BY 4.0: free to copy and reuse, with credit. Nothing on this page is written by the Org.AI Foundation.