| Pressure-Treated Softwood | Low | Often about 10–15 years with suitable installation and care | Clean periodically; inspect for damage; apply a compatible water-repellent sealer or stain as needed. | Widely available, relatively affordable, and treated to resist many forms of decay and insect damage. | Can split, warp, or discolor; treatment does not make the boards maintenance-free. Use corrosion-resistant fasteners appropriate for treated lumber. | Cost-conscious projects where regular inspection and upkeep are acceptable. |
| Cedar or Redwood | Moderate to high | Often about 15–25 years, depending on species, exposure, and upkeep | Clean and inspect regularly. A suitable stain or sealer can help preserve color and limit moisture-related wear. | Natural wood appearance, relatively easy to cut, and naturally resistant to decay compared with many untreated softwoods. | Can weather to a gray color and may still fade, crack, or require refinishing. Availability and price vary by region. | People who prefer real wood and are willing to perform periodic maintenance. |
| Tropical Hardwood | High | Often 25 years or more when properly selected, installed, and maintained | Clean periodically; follow species-specific guidance for oiling or other finishes. Use suitable pre-drilling and fasteners. | Dense, durable wood with a distinctive natural appearance and good resistance to wear. | Heavy and difficult to work with; may weather in color. Check responsible sourcing and confirm the species is suitable for the local climate. | Premium decks where natural wood character and durability are priorities. |
| Composite | Moderate to high | Many products are designed for long-term use; actual service life depends on the product, installation, and exposure | Wash with water and a cleaner approved for the board. Remove debris from gaps and follow product-specific care instructions. | Typically needs no painting or staining; available in a range of colors and wood-look finishes. | Can become hot in direct sun; surface appearance and stain resistance vary by formulation. Allow for the specified expansion and fastening requirements. | Homeowners seeking a wood-like appearance with less routine refinishing. |
| PVC (Cellular or Solid Polymer) | High | Product-dependent; check the manufacturer’s published service guidance and warranty terms | Generally requires washing and debris removal; use only cleaning methods approved for the specific boards. | Contains no wood fiber, resists moisture-related rot, and does not require painting or staining. | Can feel hot in sunlight and may have a more synthetic appearance. Expansion, fastening, and color behavior vary by product. | Moisture-exposed locations or projects where avoiding wood-based boards is a priority. |