A new deck in Charleston has to handle humidity, salt air and, on the islands, wind and flood-zone rules. We design the deck with you, pull the permit, and build it with properly sized footings, a flashed ledger or freestanding frame, hot-dip galvanized or stainless hardware, and decking and railings that suit how close you are to the water.
This service is part of our Charleston deck repair and replacement services. Homeowners who need it often ask about low-maintenance composite decking, rotted deck board replacement or railing and stair repair at the same time, so we price and schedule them together.
Design options
- Ground-level and raised decks
- Multi-level decks with step-downs
- Freestanding decks that do not attach to the house
- Wide stairs that double as seating
- Built-in benches and planters
- Black aluminum, cable or wood railings
Pine or composite?
Pressure-treated pine costs less up front and takes stain well. Composite decking costs more but never needs staining and will not splinter or rot. We price both on every estimate.
Typical cost
New decks in the Charleston area run roughly $40 to $65 per square foot in pressure-treated pine and $60 to $95 per square foot in composite, with stairs, railings and permits included.
Areas we serve
New Deck Construction is available for homes in Downtown Charleston, West Ashley, James Island, Mount Pleasant, North Charleston, Daniel Island, Johns Island, Folly Beach, Sullivan's Island, Isle of Palms and Hanahan.
Frequently asked questions
How much does a new deck cost in Charleston?
Roughly $40 to $65 per square foot in pressure-treated pine and $60 to $95 per square foot in composite as of October 2026, so a 400 square foot deck runs about $16,000 to $26,000 in pine or $24,000 to $38,000 in composite.
Do you handle permits and HOA approval?
Yes. We draw the plan, submit for the building permit, and prepare HOA or architectural review submittals where required.
Can you build in a flood zone?
Yes. Decks on Folly Beach, Sullivan's Island, Isle of Palms and other flood zones need specific footing and attachment details. We design to the local floodplain rules.
Related deck repair & replacement
All deck repair & replacementDeck Board ReplacementRailing & Stair RepairDeck Safety InspectionDeck ReplacementComposite Deck Installation