Estimating decks and porches in St. Louis, MO
Prices for decks and porches in St. Louis, MO, how they compare with the national median and what to know when bidding here, for remodeling contractors.
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New deck prices in St. Louis
Q4 2026 pricing. Ranges are rounded to the nearest $50, or $100 from $5,000 up.
Pressure treated
$4,300 to $16,200
150 to 500 square feet
National median: $4,150 to $15,600.
Cedar
$5,900 to $22,400
150 to 500 square feet
National median: $5,700 to $21,700.
Redwood
$5,700 to $21,500
150 to 500 square feet
National median: $5,600 to $21,200.
Composite
$9,600 to $35,300
150 to 500 square feet
National median: $9,300 to $34,300.
How St. Louis compares
Across the work in the cost data, St. Louis prices run 3% above the national median.
More work in St. Louis
- Kitchen remodelsCabinets, countertops, appliances and finishes.
- Bathroom remodelsTile, fixtures, vanities and plumbing rough-ins.
- Additions and ADUsBump-outs, second stories and accessory dwelling units.
- GaragesOne and two car garages, framed and sided.
- PaintingInterior and exterior, by surface area and substrate.
- Electrical workService upgrades, rough-ins, fixtures and finish work.
- All of St. Louis, MOEvery category, against the national median.
- Decks and porches nationallyNational ranges, cost drivers and the estimate's structure.
Estimate decks and porches with St. Louis prices
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