Deck Cost Calculator
Estimate materials and labor cost for a new deck.
Deck Dimensions
Options
Deck Area
0 sq ft
Materials
$0
Total Estimated Cost
$0
Cost Breakdown
How to Use This Deck Cost Calculator
Our free deck cost calculator estimates the total cost of building a new deck, including materials and optional labor. Enter your dimensions for a detailed cost breakdown.
Deck costs depend on size, materials, and complexity. Wood: $15-$25/sq ft DIY. Composite: $30-$60/sq ft.
Includes structural components: footings, posts, joists, and decking boards. Budget an additional 15-20% for hardware.
Related Topics
Frequently Asked Questions about Deck Building Costs
How much does it cost to build a deck?
DIY wood: $15-$25/sq ft. Professional wood: $30-$50/sq ft. Composite: $30-$60/sq ft. A 16x20 deck costs $5,000-$25,000.
How many footings do I need?
Every 6-8 feet along joist spans. A 16x20 deck needs about 6-9 footings, 42-48 inches deep.
Is composite decking worth it?
Costs 2-3x more upfront but requires no maintenance. Over 20-30 years, total cost is often lower than wood.
Do I need a permit to build a deck?
Most jurisdictions require permits for decks over 200 sq ft or attached to the house. Costs $50-$500.
How do I calculate lumber for a deck?
Decking boards: area + 10% waste / board width. Joists: width / 16" spacing + 1. Our calculator handles this.
Related Tools
Concrete Calculator
Calculate the exact amount of concrete needed for slabs, footings, or columns.
Paint Calculator
Calculate how much paint and primer you need for your room or house.
Roofing Calculator
Calculate roofing shingles and underlayment needed for your project.
Tile Calculator
Calculate the exact number of tiles needed for floors, walls, or backsplashes.