Step truck boxes are typically made from the following materials:
1. **Aluminum**: Lightweight and resistant to rust and corrosion, aluminum is a popular choice for step truck boxes. It offers a good balance between strength and weight, making it easy to handle while providing durability. Aluminum boxes often have a diamond plate pattern for added strength and aesthetic appeal.
2. **Steel**: Known for its strength and durability, steel is another common material used in step truck boxes. It is heavier than aluminum but offers superior protection against impacts and heavy loads. Steel boxes are often coated with a rust-resistant finish, such as powder coating, to enhance their longevity.
3. **Stainless Steel**: Offering the best of both worlds, stainless steel combines the strength of steel with the corrosion resistance of aluminum. It is more expensive but provides excellent durability and a polished appearance, making it ideal for harsh environments.
4. **Plastic/Polyethylene**: Some step truck boxes are made from high-density polyethylene or other durable plastics. These materials are lightweight, resistant to corrosion, and often more affordable. They are suitable for lighter-duty applications and are often used in environments where exposure to chemicals or moisture is a concern.
5. **Composite Materials**: A combination of materials, such as fiberglass reinforced with other substances, can be used to create composite step truck boxes. These offer a balance of strength, weight, and resistance to environmental factors.
Each material has its advantages and is chosen based on factors like budget, weight capacity, environmental conditions, and specific use cases.