Structural metal workers need knowledge in the following areas:

• Building and Construction: The tools and methods used to construct buildings, roads, and other structures.
• Mathematics: The rules and uses of numbers.
• Mechanical: The design, use, and repair of machines and tools.
• Design: Making and using plans, blueprints, drawings, and models.
• English Language: The meaning and use of the English language.
• Administration and Management: How to run a business or group.