 Steel - Low price
- Short lead time
- High strength
- Several options
- Multiple shapes
|  Aluminum - Light weight
- Long life
- Multiple shapes
- Several options
- Corrosion resistant
|  Fiberglass - Light weight
- Color fast
- Non-corrosive
- Harmonic resistant
|  Concrete - High strength
- Long life
- Low maintenance
- Durable
- Harmonic resistant
|  Wood - “Green”
- Aesthetics
- Light weight
- Multiple shapes
- Harmonic resistant
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