Free NJ Cost Tool
NJ Deck Cost Calculator
Pick a decking material and enter the deck size. The range covers footings, framing, decking, standard railings, and stairs to grade, adjusted for where you live in New Jersey.
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Typical NJ Projects
Deck Construction Costs in New Jersey
Pressure-Treated Wood Deck (200 sq ft)
Basic railings and one stair run included. Requires periodic sealing.
$8,000 – $18,000
Composite Deck (200 sq ft)
Trex, Fiberon, or TimberTech with composite or aluminum railing.
$14,000 – $30,000
Multi-Level Deck with Pergola
Two or more tiers with integrated lighting, pergola, and cable or aluminum railing.
$28,000 – $65,000+
Pool or Rooftop Deck
Specialty footings and drainage requirements for these configurations.
$20,000 – $50,000
How We Calculate
- →Material prices are installed costs per square foot, including footings, pressure-treated framing, decking, standard railing, and one set of stairs.
- →Ranges come from the same NJ pricing published in our cost guides and on our service pages.
- →The location adjustment reflects higher labor and disposal costs in North Jersey and lower costs in South Jersey.
- →Totals round to the nearest $500. A written fixed price after a site visit replaces this estimate.
FAQs
Deck Cost Questions
How much does a deck cost in NJ?
New decks in New Jersey run $30 to $120 per square foot installed depending on material. A 300 sq ft pressure-treated deck costs roughly $9,000 to $16,500. The same deck in capped composite runs about $16,500 to $28,500.
How much does a composite deck cost per square foot in NJ?
Capped composite decks from Trex, TimberTech, or Fiberon cost $55 to $95 per square foot installed in NJ. Full PVC boards such as AZEK cost $75 to $110 per square foot.
Do I need a permit to build a deck in New Jersey?
Yes. NJ requires a construction permit for nearly every attached deck and for freestanding decks over 200 sq ft or more than 30 inches off the ground. Permit fees usually run $100 to over $1,000 depending on the town and project value.
How long does a deck last in NJ?
Pressure-treated decks last 15 to 20 years with regular sealing. Capped composite and PVC decks carry 25 to 50 year manufacturer warranties and do not need staining.
Cost Guides
Related Services
Turn the Range Into a Fixed Price
Free site visit. Written price before any work starts.