Decking Materials for Deck Construction in King County, WA
This page provides an overview of common deck material categories and links to detailed explanations for each option. Each material page focuses on characteristics, performance traits, and long-term considerations.
Premium Decking & Railing Brands We Install
We install premium PVC, Composite decking and railing systems from trusted manufacturers selected for durability, low maintenance, and long-term performance in the Pacific Northwest.
Composite vs PVC Decking
Composite and PVC decking are both low-maintenance alternatives to traditional wood, but they perform differently depending on your environment, budget, and long-term expectations.
Choosing the right material comes down to how your deck will be used and how much exposure it has to moisture, shade, and wear.
Key Differences
Composite Decking
Made from a blend of wood fibers and plastic
More natural look and texture
Typically more budget-friendly
Can absorb some moisture over time
PVC Decking
100% synthetic with no wood content
Highly resistant to moisture, mold, and rot
Lighter weight and easier to handle
Higher upfront cost, lower long-term maintenance
What Works Best in the Pacific Northwest
In areas like King County, decks are exposed to consistent rain, moisture, and shaded conditions that can affect long-term performance.
PVC decking performs well in these environments because it doesn’t absorb water and resists mold and decay. It’s often the better choice for decks with limited sun exposure or heavy moisture.
Composite decking can still be a solid option, especially for homeowners focused on appearance and budget, but it may require more maintenance over time in wetter conditions.
Cost Considerations
Composite: lower upfront cost
PVC: higher upfront, lower maintenance long-term
Material Categories
PVC Decking
Fully synthetic decking material designed to resist moisture and reduce routine upkeep.
Composite Decking
Manufactured decking material combining wood fibers and synthetic binders, offering a balance of appearance and durability.
Cedar Decking
Natural wood decking valued for appearance, grain variation, and traditional character.
Railing Material Options
Deck railing systems vary by material, appearance, maintenance needs, and compatibility with different deck types.
Metal Deck Lighting
Durable metal lighting materials designed for long-term outdoor exposure and consistent visibility.