## Common ground
All options are types of fence posts made from different materials.
## Options at a glance
**4403,4421.99 – Made of wood**
- **Defining trait:** Constructed from natural timber, often treated for durability.
- **Typical examples:** Pressure-treated pine posts, cedar fence stakes.
- **Best fit when:** Used in residential fencing where cost and natural appearance matter.
**7308.90,7326 – Made of iron or steel**
- **Defining trait:** Metal construction, typically galvanized for rust resistance.
- **Typical examples:** Steel T-posts, chain-link fence supports.
- **Best fit when:** Requires high strength and long-term durability in industrial or agricultural settings.
**7610.90 – Made of aluminium**
- **Defining trait:** Lightweight, corrosion-resistant metal with low maintenance.
- **Typical examples:** Aluminium garden fence posts, decorative fencing.
- **Best fit when:** Used in coastal areas, high-moisture zones, or where weight and aesthetics are key.
## Key differences
| Feature | Wood | Iron/Steel | Aluminium |
|------------------|--------------------|--------------------|--------------------|
| Weight | Heavy | Heavy | Light |
| Corrosion resistance | Low (unless treated) | Medium (galvanized) | High |
| Cost | Low | Medium | High |
| Typical use | Residential | Agricultural | Decorative, coastal |
## How to choose
- Is the post made of natural timber? → 4403,4421.99
- Is it metal and used for strong, long-lasting fencing (e.g., farm or security)? → 7308.90,7326
- Is it lightweight, corrosion-resistant, and used in gardens or seaside areas? → 7610.90
## Overlaps & pitfalls
A post could be galvanized steel (7308.90,7326) and also used in a garden setting—this may overlap with aluminium use cases. However, material is the key differentiator. If unsure, prioritize the **primary material** over intended use. The term "fence post" applies to all, so the HS Code must reflect the core material