24×20 Deck Cost in Louisiana
A 24×20 (480 sqft) deck in Louisiana costs $22,080-$35,520 in mid-tier composite with the state's 0.92× labor multiplier (South). A 20×24 deck (480 sqft) is luxury-class — full outdoor kitchen + dining + lounge + grill island. Louisiana labor 0.92× national. Salt-air + humidity + hurricane uplift — go PVC + 316SS hardware.
5 finish tiers — 24×20 in Louisiana
National $/sqft × Louisiana's 0.92× labor multiplier × 480 sqft = total installed cost. Materials + labor + standard railing included.
Excludes permit ($105-$259 typical in Louisiana), demolition (if replacing), and exceptional framing for 0″ frost depth. LA permits $150-250. Hurricane uplift connectors required in coastal parishes.
24×20 framing notes for Louisiana
Louisiana considerations
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FAQ — 24×20 deck in Louisiana
How much does a 24×20 deck cost in Louisiana?▾
In Louisiana, a 24×20 (480 sqft) deck costs $11,040-$17,760 in pressure-treated, $22,080-$35,520 in mid-range composite (Trex Transcend / Fiberon Sanctuary), and $33,120-$48,480 in luxury composite/PVC (TimberTech AZEK / Trex Signature). Numbers reflect Louisiana's 0.92× labor multiplier on 2026-Q1 retail.
What's the cheapest way to build a 24×20 deck in Louisiana?▾
Cheapest = ground-level pressure-treated pine with no railings (where exempt under 30″ height) — ~$8,832-$13,248 in Louisiana. Add stairs + railings + above-grade framing and the build goes to ~$12,365-$17,664. DIY saves 30-50% on labor but requires permit + inspection coordination yourself.
How long does it take to build a 24×20 deck in Louisiana?▾
Permit timeline in Louisiana: 2-6 weeks depending on jurisdiction. Construction time for a 24×20: pro crew = 8-14 days for framing + boards + railings + stairs. DIY = 5-8 weekends for experienced DIYer. Allow extra time for permit approval + inspections.
What framing do I need for a 24×20 deck in Louisiana?▾
IRC R507-compliant framing for a 24×20 deck typically uses 2×8 joists at 16″ OC for spans up to 12 ft, 2×10 joists for spans 12-16 ft. Louisiana's frost depth is 0″ — footings must extend below that per IRC R403.1.4. No frost depth in your region — minimum 12″ footing depth still required for stability. Verify with your local building department.
Is composite worth it for a 24×20 deck in Louisiana?▾
Over 25 years in Louisiana: PT pine = ~$13,248 install + ~$27,600 maintenance (stain every 2-3 yr) = $40,848 total. Mid composite = ~$25,613 install + $0 maintenance = $25,613 total. Composite wins by 59-81% over 25-yr lifecycle PLUS better resale value in Louisiana's market.