Deck comparison
Composite vs Pressure-treated wood deck
Pressure-treated wood costs less ($15–$25 per square foot) than composite ($30–$60), but composite lasts 25–30 years versus 15–20 years — so the pricier option can cost less per year.
Side by side
| Composite | Pressure-treated wood | |
|---|---|---|
| Cost (square foot) | $30–$60 | $15–$25 |
| Mid-range | $45 | $20 |
| Lifespan | 25–30 years | 15–20 years |
Composite
Wood-fiber-and-plastic boards that need almost no maintenance and won't splinter — the popular mid-to-high choice.
Pressure-treated wood
The cheapest way to build a deck, but it needs regular sealing and can warp, crack, or splinter over time.
Estimate your project with the Deck Calculator →
Frequently asked questions
Is composite or pressure-treated wood decking cheaper?
Pressure-treated wood is cheaper at $15–$25 per square foot, versus $30–$60 for composite. But composite lasts 25–30 years, so weigh upfront cost against lifespan.
Which lasts longer, composite or pressure-treated wood?
Composite decking lasts 25–30 years; pressure-treated wood lasts 15–20 years. Longer-lasting materials often cost more upfront but less per year of service.