Bismarck, ND · 2026 cost guide
How much does a deck cost in Bismarck?
In Bismarck, a deck costs about $4,500–$18,000 in 2026 for a 320 sq ft deck, from pressure-treated to composite — roughly $14.1–$56.4 per square foot. That’s in line with the North Dakota average.
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Bismarck cost breakdown
| Bismarck typical range | $4,500–$18,000 |
| Bismarck per square foot | $14.1–$56.4 |
| North Dakota state average | $4,500–$18,000 |
| Versus North Dakota average | in line with average |
What’s different about Bismarck
Bismarck has steady contractor demand, with extreme winter cold and heavy snow load driving reinforced roofing and exterior detailing.
- 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 Bismarck?
In Bismarck, a deck costs about $4,500 to $18,000 in 2026 for a 320 sq ft deck, from pressure-treated to composite — roughly 14.1–56.4 per square foot. That's in line with the North Dakota average, reflecting local labor and permit costs.
What affects the cost of a deck in Bismarck?
Bismarck has steady contractor demand, with extreme winter cold and heavy snow load driving reinforced roofing and exterior detailing. Footings have to reach below the frost line, so deeper excavation adds cost.
How can I get an accurate deck building estimate in Bismarck?
Use the free Deck Cost Calculator to plug in your real measurements, then collect two or three local Bismarck quotes to compare. Prices vary by neighborhood, access, and project complexity.
Deck building cost in other North Dakota metros
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Open calculator →The Bismarck figure scales the North Dakota 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.