Knoxville, TN · 2026 cost guide
How much does a deck cost in Knoxville?
In Knoxville, a deck costs about $4,300–$17,000 in 2026 for a 320 sq ft deck, from pressure-treated to composite — roughly $13.38–$53.51 per square foot. That’s in line with the Tennessee average.
Estimate your Knoxville project with the Deck Cost Calculator →
Knoxville cost breakdown
| Knoxville typical range | $4,300–$17,000 |
| Knoxville per square foot | $13.38–$53.51 |
| Tennessee state average | $4,400–$17,500 |
| Versus Tennessee average | in line with average |
What’s different about Knoxville
Knoxville's lower cost of living keeps labor affordable, while humid summers and occasional severe storms affect exterior durability.
- Rot- and mold-resistant or composite materials are favored in humid climates.
- Severe-storm exposure favors impact-resistant materials.
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 Knoxville?
In Knoxville, a deck costs about $4,300 to $17,000 in 2026 for a 320 sq ft deck, from pressure-treated to composite — roughly 13.38–53.51 per square foot. That's in line with the Tennessee average, reflecting local labor and permit costs.
What affects the cost of a deck in Knoxville?
Knoxville's lower cost of living keeps labor affordable, while humid summers and occasional severe storms affect exterior durability. Rot- and mold-resistant or composite materials are favored in humid climates.
How can I get an accurate deck building estimate in Knoxville?
Use the free Deck Cost Calculator to plug in your real measurements, then collect two or three local Knoxville quotes to compare. Prices vary by neighborhood, access, and project complexity.
Deck building cost in other Tennessee metros
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Open calculator →The Knoxville figure scales the Tennessee 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.