Wood Deck costs $25.78 to $51.57 per sq ft in Charleston in 2026. For a 400 sq ft project, expect $10,314 – $20,627 installed, typically near $15,470. That is about 10% above the South Carolina state average.
Charleston wood deck cost calculator
Planning estimate only. State pricing applies a construction wage index to the labor share; materials are held at national prices. Get three written quotes before committing.
Why Charleston costs more than the rest of South Carolina
Charleston carries roughly a 10% premium over the South Carolina statewide figure. Three things drive that gap. Metro wages run above the state average, and labor is about 52% of this bill. Permitting and inspection are slower and more expensive inside city limits. And site access is tighter, which means smaller equipment, more hand work, and sometimes street permits for deliveries.
Statewide, South Carolina averages $23.44 to $46.88 per sq ft, against $25.78 to $51.57 inside Charleston. Suburbs on the metro fringe usually fall between the two.
Wood Deck cost by project size in Charleston
| Project size | Charleston range | Typical |
|---|---|---|
| 10×10 (100 sq ft) | $2,578 – $5,157 | $3,868 |
| 12×12 (144 sq ft) | $3,713 – $7,426 | $5,569 |
| 12×16 (192 sq ft) | $4,951 – $9,901 | $7,426 |
| 12×20 (240 sq ft) | $6,188 – $12,376 | $9,282 |
| 16×20 (320 sq ft) | $8,251 – $16,502 | $12,376 |
| 20×20 (400 sq ft) | $10,314 – $20,627 | $15,470 |
Charleston compared with other South Carolina markets
| Area | Cost per sq ft | vs Charleston |
|---|---|---|
| Columbia | $24.14 – $48.29 | -6% |
| Greenville | $24.38 – $48.76 | -5% |
| South Carolina average | $23.44 – $46.88 | −10% |
Ground conditions and code in Charleston
Permits in Charleston
A residential permit for this work typically runs around $350 in South Carolina, and metro jurisdictions like Charleston usually sit at the upper end of that range with longer review times. Permit cost is rarely included in a contractor quote, so add it separately. Confirm scope with the Charleston building department before work begins.
Hiring in Charleston
Get three written, itemised quotes from licensed and insured contractors, and make sure each specifies the same dimensions and the same grade of material. In a metro market, the cheapest bid often reflects a thinner specification or a crew travelling in from outside the area rather than a genuine saving. Ask for local references and check that the licence is current in South Carolina.
Frequently asked questions
How much does wood deck cost in Charleston?
In 2026, wood deck costs $25.78 to $51.57 per sq ft in Charleston. For a 400 sq ft project, the installed total typically lands between $10,314 and $20,627.
Is Charleston more expensive than the rest of South Carolina?
Yes. Charleston runs about 10% above the South Carolina statewide average, driven by metro wage levels, permitting, and tighter site access.
Do I need a permit in Charleston?
Most work of this type and value requires a permit. Budget around $350 and allow extra time for review, since metro jurisdictions are typically slower than rural ones.
How do I compare quotes in Charleston?
Insist on three written, itemised quotes covering identical dimensions, materials, and scope of preparation. A bid far below the others usually signals a reduced specification rather than better value.
Nearby markets
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