## Common ground
All options are bird cages, differing only in material construction.
## Options at a glance
**4421.99 – Made of wood**
- **Defining trait:** Constructed primarily from solid or planed wood (e.g., pine, bamboo).
- **Typical examples:** Wooden birdcages with slats, perches, and doors made from timber.
- **Best fit when:** The cage has visible wooden frames, panels, or structural elements; no metal or woven materials dominate.
**4602 – Made of plaiting materials, basketwork or wickerwork**
- **Defining trait:** Woven from natural or synthetic fibers (e.g., rattan, bamboo strips, plastic rope).
- **Typical examples:** Round, basket-style cages with open weave; decorative or rustic designs.
- **Best fit when:** The cage is woven, flexible, and has a lattice or open-grid structure.
**7323.9X – Made of iron or steel**
- **Defining trait:** Constructed from metal rods, wires, or sheets (e.g., welded steel frame).
- **Typical examples:** Industrial-style cages with bars, mesh, or welded frames; often durable and heavy-duty.
- **Best fit when:** The cage has visible metal bars, wire mesh, or a rigid metallic structure.
## Key differences
| Feature | Wood (4421.99) | Wickerwork (4602) | Iron/Steel (7323.9X) |
|---------------------|----------------------|----------------------------|---------------------------|
| Material | Solid wood | Woven fibers | Metal rods/mesh |
| Structure | Rigid, planed panels | Flexible, open weave | Rigid, welded or bar-based|
| Durability | Moderate | Low to moderate | High |
## How to choose
1. Is the cage made of solid or planed wood? → 4421.99
2. Is it woven from reeds, rattan, or rope-like material? → 4602
3. Does it have visible metal bars, mesh, or welded joints? → 7323.9X
## Overlaps & pitfalls
A cage may combine materials (e.g., wooden frame with wire mesh door), making classification ambiguous. In such cases, use the **dominant material** for structure and function. If unsure, prioritize the main structural material. No option takes priority by default—choose based on the product’s primary construction