Quick Answer: For the Bay Area climate — which features mild, damp winters and dry summers with significant fog humidity in coastal areas — composite decking (Trex, TimberTech, Fiberon) is the #1 recommended decking material for 2025 because it is completely immune to the moisture, rot, and UV cycling that degrade natural wood decks. Among natural woods, the best options in descending order of durability are: (1) Ipe (Brazilian Walnut) — the most durable hardwood, naturally resistant to rot and insects, lasts 40+ years with oil maintenance; (2) Teak — beautiful, naturally oily, rot-resistant, but expensive and requires responsible sourcing; (3) Redwood or Cedar — the traditional Bay Area choice, locally sourced, beautiful appearance, moderate rot resistance if heart-wood grade is used; lasts 15-25 years with regular staining; (4) Pressure-treated lumber (PT) — the most affordable option, chemically treated for rot resistance, but requires sealing and can be unattractive; lasts 15-25 years.
Deck Material Comparison — Bay Area Climate 2025
Helpful Resources:
| Material | Lifespan | Cost Per Sq Ft (Material Only) | Maintenance |
|---|---|---|---|
| Composite (Trex, TimberTech) | 25-30 years | $6 – $15 | None (occasional cleaning) |
| Ipe (Brazilian Walnut) | 40+ years | $8 – $20 | Annual oiling |
| Teak | 30-40 years | $15 – $30 | Annual oiling (or allow to grey) |
| Redwood (heart-grade) | 15-25 years | $5 – $12 | Every 2-3 years: clean + stain |
| Cedar | 12-20 years | $3 – $8 | Every 1-2 years: clean + stain |
| Pressure-treated pine | 15-25 years | $2 – $5 | Annual staining/sealing |
Quartz Construction builds decks in all materials throughout San Jose. We recommend composite for most Bay Area clients for the best long-term value. Learn about deck services. CSLB #1003436 | Call (650) 749-7436.
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