This industry comprises establishments primarily engaged in structural framing and sheathing using materials other than structural steel or concrete. The work performed may include new work, additions, alterations, maintenance, and repairs. Illustrative Examples: Building framing (except structural steel) Post frame contractors Foundation, building, wood, contractors Steel framing contractors Framing contractors Wood frame component (e.g., truss) fabrication on site Cross-References. Establishments primarily engaged in-- ? Finish carpentry--are classified in Industry 238350, Finish Carpentry Contractors; and ? Installing structural steel, precast concrete framing, or structural elements--are classified in Industry 238120, Structural Steel and Precast Concrete Contractors.