What are the electrical boxes made of?

Electrical boxes are typically made from a variety of materials, including metal (such as steel or aluminum), plastic (PVC or nylon), and fiberglass. Metal boxes provide durability and grounding options, while plastic boxes are lightweight, corrosion-resistant, and easier to install. Fiberglass boxes are used in environments where corrosion resistance is critical. The choice of material often depends on the specific application and environmental conditions.