DECK COST CALCULATOR

Deck Cost Calculator — Materials & Project Cost Estimator

Estimate the material and total project cost for your deck. Enter the deck dimensions, choose your decking material and adjust the labor percentage to match your local market and get a comprehensive cost breakdown.

Deck dimensions

Decking material

Cost factors

Labor % is relative to material cost. Adjust to match your local rates.

Estimated total cost
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Enter dimensions to see estimate.

Decking Material Comparison

  • Pressure-treated wood: Most economical ($2–$5/sq ft material). Requires staining and sealing every 2–3 years. Typical lifespan 15–20 years with maintenance.
  • Cedar: Natural rot resistance, attractive appearance ($4–$8/sq ft). Moderate maintenance. 20–25 year lifespan.
  • Composite (Trex, TimberTech): Low maintenance, no painting ($7–$15/sq ft). Stain and fade resistant. 25–30 year warranty on premium products.
  • PVC / vinyl: Fully synthetic, moisture-proof ($8–$16/sq ft). No maintenance beyond washing. Good in wet climates.
  • Tropical hardwood (Ipe, Tigerwood): Premium appearance and hardness ($15–$25/sq ft). Extremely durable (40+ years) with minimal maintenance.

What Affects Deck Cost

  • Deck height: Ground-level decks are simpler and cheaper than elevated decks requiring posts, beams and ledger attachment
  • Railings: Add $25–$80 per linear foot depending on material (wood, composite, cable, glass)
  • Stairs: Each flight adds $300–$1,500 depending on height and materials
  • Footings: Concrete footings (required in most areas) add $100–$300 each
  • Permits and inspections: Typically $200–$800 depending on municipality
  • Site preparation: Clearing, grading and drainage can add significant cost

Deck Building Code Basics

Most residential decks require a permit and inspection. Key requirements vary by jurisdiction but typically include:

  • Ledger board properly flashed and attached to house framing (not just siding)
  • Post footings below frost depth and sized for load
  • Railing required when deck surface is 30 in or more above grade
  • Railing height minimum 36 in (42 in for commercial)
  • Baluster spacing: 4 in maximum opening (to prevent a 4-in sphere from passing through)

Frequently Asked Questions

How much does it cost to build a 12×16 deck?

A 12×16 ft (192 sq ft) deck in pressure-treated lumber typically costs $3,000–$6,000 for DIY materials or $6,000–$12,000 installed by a contractor. Composite decking adds 50–100% to material costs.

Does a deck add value to a home?

Yes. A well-built deck typically returns 60–80% of its cost at resale according to Remodeling Magazine's Cost vs. Value reports. Composite decks generally return more value than wood due to lower perceived maintenance.

How long does it take to build a deck?

A typical 12×16 ft deck takes a two-person crew 2–4 days to build. DIY builders should budget 1–2 weekends for the same size, depending on experience and access to tools.

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