Wooden Pergolas
✓ 10–15 years Lifespan
✓ Warranty 1–2 years
✓ Class C (combustible) Fire Resistance
✓ Low (needs sealant) Rot Resistance
Aluminum Pergolas
✓ 25–30 years Lifespan
✓ Warranty 10–15 years
✓ Class A (non‑combustible) Fire Resistance
✓ High (insect‑proof) Rot Resistance
✓ Wind resistance