
Redwood vs Pressure-Treated Decking: Natural vs Chemical (2026)
Redwood and pressure-treated pine represent two philosophically different approaches to outdoor decking. Redwood relies on natural rot resistance and beauty, while pressure-treated lumber uses chemical preservatives to extend softwood's outdoor life. Cost, aesthetics, and environmental concerns all factor into this decision.

Redwood

Pressure-Treated Pine
Key Takeaways
- Redwood and pressure-treated pine represent two philosophically different approaches to outdoor decking.
- Redwood relies on natural rot resistance and beauty, while pressure-treated lumber uses chemical preservatives to extend softwood's outdoor life.
- Cost, aesthetics, and environmental concerns all factor into this decision.
- Redwood is the premium choice for beauty and longevity without chemicals.
- Pressure-treated wins on affordability and availability.
| Property | Redwood | Pressure-Treated Pine |
|---|---|---|
| Price/Linear Ft | $4-$8 | $1.50-$3 |
| Lifespan | 20-30 years | 10-20 years |
| Rot Resistance | Naturally excellent | Chemically treated |
| Appearance | Beautiful rich red | Greenish-tan, plain |
| Chemical Treatment | None needed | ACQ or CA-B preservatives |
| Maintenance | Seal every 2-3 years | Seal/stain every 1-2 years |
| Availability | West Coast mainly | Everywhere |
Redwood
Pros
- Natural beauty without chemicals, Excellent rot resistance, Longer lifespan, Environmentally friendlier
Cons
- 3-4x more expensive, Limited availability outside West Coast, Softer surface, Environmental concerns about old-growth
Pressure-Treated Pine
Pros
- Very affordable, Available everywhere, Decent durability when maintained, Takes stain well
Cons
- Contains chemical preservatives, Shorter lifespan, Prone to warping and checking, Requires staining to look good
Best Use Cases
Choose redwood for a premium natural deck with beautiful color and no chemical treatment, especially on the West Coast. Choose pressure-treated for budget-friendly decking with acceptable durability.
Verdict
Redwood is the premium choice for beauty and longevity without chemicals. Pressure-treated wins on affordability and availability. For most budgets, pressure-treated is the practical choice; redwood is the aspirational one.
Frequently Asked Questions
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