What materials are commonly used to make electrical boxes?

The selection of materials commonly used to make electrical boxes primarily includes steel, aluminum, plastic, or fiberglass due to their unique properties that make them suitable for electrical installations.

Steel is often valued for its strength and ability to provide grounding, making it a durable choice for various environments. Aluminum is lightweight and resistant to corrosion, which is beneficial in moist areas or where weight is a concern. Plastic electrical boxes are favored for their non-conductive properties, lightweight nature, and ease of installation, particularly in residential applications. Fiberglass offers excellent durability and resistance to environmental factors, making it suitable for outdoor applications.

This diverse range of materials allows for flexibility in choice based on application requirements, environmental conditions, and installation preferences. Each material has its advantages concerning weight, durability, conductivity, and compatibility with specific wiring methods.