Philadelphia, PA · 2026 cost guide
How much does a deck cost in Philadelphia?
In Philadelphia, a deck costs about $5,200–$20,500 in 2026 for a 320 sq ft deck, from pressure-treated to composite — roughly $16.22–$64.87 per square foot. That’s about 6% above the Pennsylvania average.
Estimate your Philadelphia project with the Deck Cost Calculator →
Philadelphia cost breakdown
| Philadelphia typical range | $5,200–$20,500 |
| Philadelphia per square foot | $16.22–$64.87 |
| Pennsylvania state average | $4,900–$19,500 |
| Versus Pennsylvania average | about 6% above average |
What’s different about Philadelphia
Philadelphia is Pennsylvania's priciest market, where dense permitting, higher labor costs, and older housing stock raise exterior project pricing.
- Footings have to reach below the frost line, so deeper excavation adds cost.
How the cost is built
Deck cost depends on size, decking material (pressure-treated pine is cheapest; composite and PVC are mid-range; tropical hardwood is premium), and structural extras like railings, stairs, and elevated footings. Permits and ledger flashing add cost on attached decks.
Frequently asked questions
How much does a deck cost in Philadelphia?
In Philadelphia, a deck costs about $5,200 to $20,500 in 2026 for a 320 sq ft deck, from pressure-treated to composite — roughly 16.22–64.87 per square foot. That's about 6% above the Pennsylvania average, reflecting local labor and permit costs.
What affects the cost of a deck in Philadelphia?
Philadelphia is Pennsylvania's priciest market, where dense permitting, higher labor costs, and older housing stock raise exterior project pricing. Footings have to reach below the frost line, so deeper excavation adds cost.
How can I get an accurate deck building estimate in Philadelphia?
Use the free Deck Cost Calculator to plug in your real measurements, then collect two or three local Philadelphia quotes to compare. Prices vary by neighborhood, access, and project complexity.
Deck building cost in other Pennsylvania metros
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Open calculator →The Philadelphia figure scales the Pennsylvania cost range by a local metro index, then adjusts for the city’s labor market and climate. A 2026 planning estimate, not a quote — get local bids. See our methodology.