Why build a deck?
A well-designed deck extends your living space outdoors and is one of the top home improvements for both enjoyment and resale value. In 2026, the average deck addition costs $7,000 to $30,000, with composite and hardwood options on the higher end.
Material comparison
| Material | Cost per sq ft | Maintenance | Lifespan |
|---|---|---|---|
| Pressure-treated wood | $15–$25 | Stain/seal every 2–3 years | 15–20 years |
| Cedar or redwood | $25–$40 | Stain/seal every 2–3 years | 20–30 years |
| Composite (Trex, TimberTech) | $30–$55 | Minimal — wash annually | 25–50 years |
| PVC / vinyl | $35–$60 | Very low | 30–50 years |
| Ipe hardwood | $40–$70 | Oil annually (optional) | 40–75 years |
Popular design trends for 2026
- Multi-level decks: Create distinct zones for dining, lounging, and cooking.
- Built-in seating and planters: Maximize usable space while adding character.
- Integrated lighting: LED deck and railing lights extend usability into the evening.
- Outdoor kitchens: Built-in grills, counters, and sinks for seamless entertaining.
- Mixed materials: Combining wood, metal railings, and cable systems for a modern look.
Permit requirements
Most municipalities require a building permit for decks over 200 sq ft or those elevated more than 30 inches above grade. Permits typically cost $200–$1,500 and require structural plans. Your contractor should handle the permitting process.
Timeline
A standard deck build takes 1–3 weeks once materials arrive and permits are approved. Complex multi-level designs or custom features may take 4–6 weeks.
FAQ
Composite vs. wood — which should I choose?
If you want the lowest upfront cost and don't mind maintenance, pressure-treated wood is the most affordable. If you prefer a low-maintenance, long-lasting solution, composite decking pays for itself over 10–15 years in saved staining and repair costs.
Will a deck increase my home value?
Yes — a new wood deck recoups about 65–75% of its cost at resale. Composite decks recoup slightly less (60–70%) but appeal to buyers who want low maintenance.