Deck Building Cost in Alabama
2026 estimates — composite, pressure-treated, and hardwood
300 sqft composite deck, single level, Alabama labor rates. Updated June 2026.
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Deck Cost by Material — Alabama 2026 (300 sqft)
| Material | 300 sqft (AL) | Per sqft |
|---|---|---|
| Pressure-treated lumber | $5,280 | $18/sqft |
| Cedar | $7,128 | $24/sqft |
| Composite (Trex, TimberTech) | $9,240 | $31/sqft |
| Tropical hardwood (Ipe) | $12,672 | $42/sqft |
Installed including framing, hardware, and labor. Alabama rates applied. Railing not included above.
Building a Deck in Alabama — What to Know
1. Alabama Costs vs. National Average
Deck building in Alabama is below the national average (cost index: 0.88×). A 300 sqft composite deck averages $9,240 — composite costs 75% more than pressure-treated but requires virtually no maintenance.
2. Best Deck Material for Alabama
Get permits before building in Alabama — unpermitted decks cause major issues at resale. Get 3 contractor bids — deck pricing varies 20–35% between builders. Composite decking costs more upfront but eliminates annual maintenance costs ($300–$600/year for staining wood).
3. Permits & Requirements in Alabama
Most decks over 30 inches above grade require a building permit in Alabama. Permit costs average $200–$600. Attached decks require structural assessment of the ledger board connection to your home. Always pull permits — unpermitted decks must be disclosed at sale and can require removal.
FAQs — Deck Cost in Alabama
Deck building in Alabama costs $7,480 on average for a 300 sqft composite deck in 2026 — below the national average. Pressure-treated lumber decks run $5,280 for the same size; composite runs $9,240.
In Alabama, composite decking (Trex, TimberTech) costs $9,240 vs $5,280 for pressure-treated wood for 300 sqft. Composite has a 25–50 year warranty and requires no annual staining ($300–$600/year for wood). Most Alabama homeowners choose composite for its long-term value.
Most Alabama municipalities require permits for decks over 30 inches above grade, attached decks regardless of height, and decks over 200 sqft. Permit costs range $200–$800. Always pull permits — unpermitted construction must be disclosed at home sale and can result in forced removal.
Deck railing adds $1,500–$4,500 for a typical 60 linear foot deck in Alabama. Pressure-treated railing runs $1,320 installed; composite railing $2,112; cable railing $3,168. Aluminum and composite railings require zero maintenance and are often the best long-term value.
Deck lifespan varies by material: pressure-treated lumber lasts 15–20 years with annual staining ($300–$600/year); cedar lasts 20–30 years; composite (Trex, TimberTech) lasts 25–50 years with minimal upkeep; tropical hardwood (Ipe) lasts 40–75 years. Alabama's climate and precipitation levels affect how quickly wood degrades — composite is a better investment in states with significant rain or temperature swings.
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Get Free Quotes on AngiAlabama Deck Summary
- →Composite avg: $9,240 / 300 sqft
- →PT lumber: $5,280 / 300 sqft
- →Range: $5,610 – $10,472
- →Cost index: below national avg