Construction Trades Workers are laborers, tradespersons, or professionals employed in the construction of the built environment and its infrastructure. They construct, assemble, maintain, install and repair stationary steam boilers, boiler house auxiliaries, stone structures like piers, walls, and abutments, structures and fixtures of wood and other such materials like concrete forms, building frameworks, padding and flooring materials, hard tile, electrical wiring, equipment, and fixtures, glass in store fronts, windows, and display cases, pipelines or pipe systems, heating and cooling equipments, sheet metal products and equipments such as control boxes, ducts, and furnace casings, solar photovoltaic systems on roofs or other structures and perform other construction related chores. They may operate equipments used for power construction, applying asphalt, concrete, or other materials, driving pilings for retaining walls, foundation of structures such as bridges, buildings and piers, and bulkheads, and hand and power tools of all types. Occupations in this pathways require a high level of physical strength and endurance.