Average Cost Range
$4,000 – $15,000
National Average
$8,500
Deck construction costs between $4,000 and $15,000 for a typical project, with the national average around $8,500. A basic pressure-treated wood deck costs less, while composite and hardwood decks command premium prices. Deck size, material, height, and features like railings and stairs are the primary cost drivers.
Cost Breakdown
| Item / Type | Low | High | Average |
|---|---|---|---|
| Pressure-Treated Wood Deck | $15 | $25 | $20 per sq ft |
| Cedar / Redwood Deck | $25 | $40 | $30 per sq ft |
| Composite Deck | $30 | $60 | $45 per sq ft |
| PVC / Vinyl Deck | $35 | $65 | $50 per sq ft |
| Hardwood Deck (Ipe, Tigerwood) | $40 | $75 | $55 per sq ft |
| Deck Railing | $20 | $75 | $40 per linear ft |
| Deck Stairs | $300 | $1,500 | $750 |
| Deck Repair / Resurfacing | $500 | $3,000 | $1,500 |
Labor Costs
Deck building labor costs $10–$35 per square foot, typically accounting for 50–60% of the total project cost. Elevated decks, complex designs, and multi-level structures increase labor costs significantly.
Factors That Affect Decking Cost
Decking Material
Pressure-treated wood at $15–$25 per sq ft is the most affordable. Composite decking at $30–$60 per sq ft costs more upfront but requires less maintenance over its 25–50 year lifespan.
Deck Size
The average deck is 300–500 square feet. Larger decks cost less per square foot due to economies of scale, but the total cost increases with size. A 300 sq ft deck might cost $6,000–$15,000 depending on material.
Deck Height & Foundation
Ground-level decks are the most affordable, while elevated decks require more structural framing, posts, and potentially concrete footings. A second-story deck can cost 50–100% more than a ground-level design.
Railings & Features
Railings add $20–$75 per linear foot. Built-in seating, pergolas, planters, and lighting increase both material and labor costs. These features enhance usability but can add thousands to the project.
Permits & Design
Most decks require a building permit ($50–$500) and must meet local building codes. Decks attached to the house require proper ledger board installation and may trigger additional inspections.
Tips To Save Money On Decking
Choose Pressure-Treated Wood
Pressure-treated lumber costs 40–60% less than composite decking and lasts 15–20 years with regular maintenance. It's the best option for homeowners on a budget.
Keep the Design Simple
A simple rectangular deck costs less than multi-level or curved designs. Straightforward layouts require less cutting, less waste, and less labor time.
Build Ground-Level
A ground-level deck eliminates the need for extensive structural framing, tall posts, and complex stairs. Ground-level designs save 20–30% compared to elevated decks of the same size.
Do Staining and Sealing Yourself
Staining and sealing a deck is a manageable DIY project that can save $500–$1,500 in labor costs. Apply stain every 2–3 years to protect your investment and extend the deck's lifespan.