Composite Deck Cost in Missouri
A Composite deck in Missouri costs $35-$95/sqft installed with the state's 1.00× labor multiplier (Midwest). Generic composite covers the entire wood-plastic-composite + capped composite + PVC market — Trex, TimberTech, Fiberon, Deckorators, MoistureShield, Wolf, Zuri, NewTechWood, DuraLife. Average 25-yr lifespan + no maintenance is the value vs PT pine which needs annual staining. Missouri labor 1.00× national. Mid-spectrum frost depth 24-30″.
Composite cost by deck size in Missouri
Mid-tier Composite (TimberTech Pro Legacy) at Missouri's 1.00× labor multiplier — ~$58/sqft installed.
Cost ranges include materials + labor + standard railing. Excludes permit ($175 baseline + 1.2% of project value), demolition (if replacing), and footings for 24″ frost depth.
Composite product lines in Missouri
Composite installed cost ranges from $35/sqft (entry tier like Trex Enhance Basics) to $95/sqft (luxury PVC like AZEK Harvest). National median is $50-58/sqft for a mid-tier 2026-Q1 build — multiply by your state labor multiplier for local pricing.
Missouri-specific notes
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FAQ — Composite in Missouri
How much does a Composite deck cost in Missouri?▾
In Missouri, Composite decking costs $35-$95/sqft installed (national $35-$95/sqft × Missouri's 1.00× labor multiplier). A typical 16×20 (320 sqft) Composite deck lands around $20,800. Mid-tier TimberTech Pro Legacy runs about $18,560 for the same scope.
Which Composite line is best for Missouri's climate?▾
Missouri's humid climate favors capped composite or PVC over generic composite — Fiberon Sanctuary performs best in this environment. Salt-air coastal areas (Gulf Coast, Atlantic) need 316SS hardware regardless of brand.
What's the permit fee for a Composite deck in Missouri?▾
Missouri permit fees typically run $131-$324 depending on jurisdiction and project value — most calculators use max(regional baseline $175, 1.2% of project value). MO permits $130-220.
How deep do footings need to be for a Composite deck in Missouri?▾
Missouri's frost depth is approximately 24″. Composite doesn't change the footing requirement — that's IRC R403.1.4-driven by frost line. Use Sonotube 10-12″ depending on tributary area. Verify with your local building department since AHJs sometimes require deeper depths than the state-published value.
Is Composite worth the money in Missouri?▾
Composite vs PT pine over 25 years in Missouri: PT pine = ~$30/sqft installed + ~$3/sqft/yr maintenance (stain/seal annually) = $93/sqft total. Composite mid-tier = $58/sqft installed + $0 maintenance = $58/sqft total. Composite typically wins the 25-yr TCO comparison by 20-40%, plus better resale value.
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