Deck Construction Cost in St. Louis, MO
Most St. Louis homeowners pay $7,800–$21,300 for deck construction. Here's the full breakdown by line item — and how to tell if your quote is fair or padded.
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Deck Construction cost breakdown in St. Louis
Decks vary enormously by material and size, which gives contractors room to inflate. Composite vs. wood, railing style, and footings are where the dollars — and the overcharges — add up.
Estimates based on RS Means construction cost data and St. Louis-area labor rates. Your exact cost depends on materials, scope, and contractor.
What's a fair price in St. Louis?
St. Louis has a below-average cost of construction labor in the country — skilled trades here run roughly $35–$60/hr. That means a fair deck quote in St. Louis should land near $14,600 for a typical project, with the line items roughly matching the ranges above.
If your quote is meaningfully higher and the contractor can't explain why line by line, that's a sign you may be overpaying.
How deck quotes get inflated
- Decking material priced well above retail for the brand and grade chosen.
- No permit or footing-inspection line for a structural deck.
- Composite billed but pressure-treated wood actually installed — confirm the brand and color.
- Square footage or board count that does not match the plan.
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Frequently asked questions
How much does deck construction cost in St. Louis, MO?
In St. Louis, deck construction typically costs between $7,800 and $21,300, with most homeowners landing around $14,600. St. Louis has a below-average cost of construction labor ($35–$60/hr for skilled trades), which is reflected in these figures.
How much does a deck cost per square foot?
A standard deck runs roughly $30–$60 per square foot installed nationally, with composite material at the higher end and pressure-treated wood at the lower end.
Is composite decking worth the extra cost?
Composite costs more upfront but requires far less maintenance than wood and lasts longer, which often makes it cheaper over the life of the deck.
Do I need a permit to build a deck?
Most attached or elevated decks require a permit and footing inspection. A missing permit line is a red flag worth questioning.