How Much Does Deck Building Cost in St. Louis, MO?
St. Louis pricing is 12% below the national average. Updated for 2026.
Based on local labor rates, varied climate conditions, and St. Louis's diversified economy.See our methodology
Deck Building Pricing in St. Louis, MO
St. Louis is one of the more affordable markets for deck building, with costs running about 12% below the national average. The city's diversified economy and balanced labor market create favorable conditions for competitive pricing. Getting multiple quotes from the 295K-population metro area is straightforward.
Local climate plays a direct role in deck building costs here. Harsh winters and hot summers mean year-round service needs; freeze-thaw cycles affect foundations.
Market-specific factors matter in St. Louis: moderate cost of living keeps contractor rates affordable.
St. Louis has moderate permitting requirements. Depending on the scope of your deck building project, you may need local permits. A licensed contractor will handle the permitting process as part of the job in most cases.
St. Louis vs National Average
What Affects Deck Building Cost in St. Louis?
Material
Pressure-treated wood: $15-$25/sq ft. Composite: $25-$45/sq ft. Hardwood: $30-$60/sq ft
Size
200 sq ft: $4K-$8K. 400 sq ft: $8K-$15K. 600+ sq ft: $12K-$25K
St. Louis Market Conditions
moderate cost of living keeps contractor rates affordable
Local Climate Impact
harsh winters and hot summers mean year-round service needs; freeze-thaw cycles affect foundations
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Tips to Save on Deck Building in St. Louis
- 1.Pressure-treated wood is the most affordable option
- 2.Keep the design simple — avoid curves and multiple levels
- 3.Build during off-season for better pricing
- 4.Get at least 3 quotes from licensed deck builders
📈 Deck Building in St. Louis Cost Trends (2020–2024)
Prices have increased +17.7% over the last 5 years
| Year | National Avg | YoY Change |
|---|---|---|
| 2020 | $5,980 | — |
| 2021 | $6,231 | +4.2% |
| 2022 | $6,636 | +6.5% |
| 2023 | $6,822 | +2.8% |
| 2024 | $7,040 | +3.2% |
Based on national averages adjusted for annual inflation. Actual costs vary by location and project scope.
💬 What Did You Pay?
Real costs reported by homeowners for Deck Building in St. Louis
Recent Reports
Frequently Asked Questions
Do I need a permit to build a deck?
Almost always yes. Most municipalities require permits for decks, especially those above ground level.
How long does a deck last?
Pressure-treated: 15-20 years. Composite: 25-30 years. Hardwood: 20-40 years with maintenance.
Why does deck building cost different in St. Louis than other cities?
St. Louis's costs reflect local labor rates driven by the diversified economy, varied climate conditions that affect materials and scheduling, and moderate permitting requirements. The balanced labor market also influences competitive pricing.
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