## Common ground
All options describe freestanding outdoor structures used for shade, shelter, or aesthetic enhancement—commonly referred to as gazebos or pergolas.
## Options at a glance
**4421.9X – Made of wood**
- **Defining trait:** Constructed primarily from natural timber or wood-based materials.
- **Typical examples:** Wooden gazebo with slatted roof, wooden pergola with lattice beams.
- **Best fit when:** The structure is built from solid or treated wood, especially for a rustic or traditional look.
**6306.2X,6306.90 – Made of textile material**
- **Defining trait:** Features a canopy or cover made of fabric (e.g., canvas, polyester), not rigid structural elements.
- **Typical examples:** Pop-up shade pavilion, retractable fabric pergola.
- **Best fit when:** The main functional part is a flexible, removable, or tensioned fabric cover over a frame.
**7020.00 – Made of glass**
- **Defining trait:** Uses glass as the primary material for roof or walls, often for transparency and modern design.
- **Typical examples:** Glass-roofed pergola, transparent gazebo with glass panels.
- **Best fit when:** The structure includes large glass panels or a fully glazed roof for light and visibility.
**7308.90 – Made of iron or steel**
- **Defining trait:** Constructed from heavy-duty metal, typically with welded or bolted joints; often industrial or ornamental.
- **Typical examples:** Iron-framed gazebo with decorative detailing, steel pergola with angular supports.
- **Best fit when:** The structure has a strong metal frame, especially with wrought iron or structural steel.
**7610.90 – Made of aluminium**
- **Defining trait:** Built from lightweight, corrosion-resistant aluminum alloy, often used in modern designs.
- **Typical examples:** Aluminum pergola with powder-coated finish, modular gazebo with easy assembly.
- **Best fit when:** The structure is light, durable, and designed for low maintenance or coastal use.
## Key differences
| Option | Material Type | Weight & Durability | Common Aesthetic |
|-------|----------------|------------------------|--------------------|
| 4421.9X | Wood | Medium-heavy, moderate durability | Rustic, natural |
| 6306.2X/90 | Textile | Light, low durability (fabric) | Casual, temporary |
| 7020.00 | Glass | Heavy, high breakage risk | Modern, transparent |
| 7308.90 | Iron/Steel | Heavy, very durable | Industrial, ornamental |
| 7610.90 | Aluminium | Light, highly durable | Contemporary, sleek |
## How to choose
- Is the main structure made of solid wood? → 4421.9X
- Does it have a fabric canopy or cover? → 6306.2X,6306.90
- Is glass used for roof or walls? → 7020.00
- Is the frame made of heavy metal like iron or steel? → 7308.90
- Is it lightweight with aluminum alloy framing? → 7610.90
## Overlaps & pitfalls
A structure may combine materials (e.g., aluminum frame with fabric cover), which could fit both 7610.90 and 6306.2X/90. In such cases, prioritize the **main structural material** or **primary function** (e.g., shade vs. framing). If unclear, use the dominant material