This work activity involves assembling and disassembling metal structures in the shop and in the field. Specific tasks include, for example, drilling, grinding, welding and sawing materials, rigging and hoisting materials and machinery, building and erecting false work, and placing and connecting structural members. This database includes an analysis of the hazards associated with these tasks, as well as practical measures for making such work safer.

• Build or erect false work
• Dismantle or demolish metal structures
• Drill, grind and saw materials
• Erect and dismantle scaffolds
• Erect stairways, curtain walls, wire rope railings
• Fabricate metal structures in shop and field
• Hoist and move members and components in shop
• Inspect and use mechanical lifts
• Inspect and use scaffolds and ladders
• Install exterior skin
• Load and unload material, members and components
• Place and connect structural members
• Rig and hoist structural members and machinery
• Unload, assemble, jump and disassemble cranes
• Weld, plasma cut, air-arc and flame cut metal