How much does a composite deck cost?
Composite deck installation runs $8,500 for a small Trex or TimberTech deck, $18,000 for a typical 16x20 composite deck with hidden fasteners, and $38,000+ for large multi-level decks with premium railing systems.
Quick price points (2026)
| Tier | Cost | Unit |
|---|---|---|
| Low | $8,500 | installed |
| Typical | $18,000 | installed |
| High | $38,000 | installed |