Wisconsin · 2026 cost guide
How much does a deck cost in Wisconsin?
In Wisconsin, a deck costs about $4,700–$18,500 in 2026 for a 320 sq ft deck, from pressure-treated to composite — roughly $14.7–$58.8 per square foot. That’s close to the U.S. average.
Estimate your Wisconsin project with the Deck Cost Calculator →
Wisconsin cost breakdown
| Typical total (a 320 sq ft deck) | $4,700–$18,500 |
| Per square foot | $14.7–$58.8 |
| Metro areas (Milwaukee, Madison, and Green Bay) | up to ~$20,000 |
| Versus U.S. average | close to average |
What’s different about Wisconsin
Wisconsin's long, snowy winters and freeze-thaw cycles require durable, well-insulated exteriors, with costs rising near the Milwaukee metro.
- Footings have to reach below the frost line, so deeper excavation adds cost.
Expect quotes toward the higher end in Wisconsin’s larger metros — Milwaukee, Madison, and Green Bay — where labor and permit costs run above the state average, and lower in rural areas.
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.
Resale value
A wood deck recoups about 50–83% of its cost at resale — more than a composite deck — according to the annual Remodeling Cost vs. Value report.
Frequently asked questions
How much does a deck cost in Wisconsin?
In Wisconsin, a deck costs about $4,700 to $18,500 in 2026 for a 320 sq ft deck, from pressure-treated to composite — roughly 14.7–58.8 per square foot. That's close to the national average, reflecting local labor and material costs.
What affects the cost of a deck in Wisconsin?
Wisconsin's long, snowy winters and freeze-thaw cycles require durable, well-insulated exteriors, with costs rising near the Milwaukee metro. Footings have to reach below the frost line, so deeper excavation adds cost.
How can I get an accurate deck building estimate for my home?
Use the free Deck Cost Calculator to plug in your real measurements and materials, then collect two or three local quotes to compare. Within Wisconsin, prices run higher in metros like Milwaukee, Madison, and Green Bay and lower in rural areas.
Deck building cost by city in Wisconsin
Deck building cost in nearby states
Keep planning
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Open calculator →Sources & method
The Wisconsin figure is the national installed-cost range scaled by a Wisconsin regional cost index (its construction costs run close to the U.S. average), then adjusted for the local climate and code factors above. It’s a 2026 planning estimate, not a quote — get local bids before budgeting.
- Smart Cost Hub methodology — how our cost ranges and indices are built
- U.S. Bureau of Labor Statistics — Producer Price Index (construction materials)
- Deck Quotes Near Me — local Wisconsin contractor quote data