July 15, 2025
How Much Does a Deck Cost in Wilmington, NC? (2025 Guide)
Real numbers from a Wilmington general contractor on what decks actually cost here, what drives the price up or down, and where homeowners waste money.
We build decks all over New Hanover, Pender, and Brunswick counties, and the first question on almost every estimate call is the same: what's this going to cost? Fair question. Here's how we answer it honestly.
The short answer
Most new decks we build run somewhere between $4,000 and $25,000, and the majority land in the $8,000 to $18,000 range. A simple ground-level pressure-treated deck sits at the low end. A big raised composite deck with upgraded railing, stairs, and lighting sits at the top. If your existing deck just needs work rather than replacement, repairs typically run $800 to $6,500 depending on how far the damage has spread.
Anyone who quotes you a firm price over the phone without seeing the site is guessing. Anyone quoting way below these ranges is probably cutting something you'll pay for later.
What actually drives the price
Size. Square footage is the biggest lever. A 12x12 deck and a 16x20 deck are very different projects, and the framing, footings, and decking all scale with it.
Decking material. Pressure-treated pine is the least expensive up front. Composite boards cost noticeably more per square foot but skip the staining cycle. On the coast, that maintenance math matters more than it does inland, and we walk through it on every estimate.
Height and stairs. A ground-hugging deck is straightforward. Once you're a full story up, which is common on beach houses from Topsail Island down to Oak Island, you're adding longer posts, more bracing, a stair run, and code-required guards. Elevation adds real cost.
Railing. Railing is the sleeper line item. Basic wood pickets are cheap. Aluminum, cable, or composite rail systems can add thousands on a large deck, but they're also what you see and touch every day, and they last much longer in salt air.
Footings and site conditions. Sandy soil, tight crawl-space access, sloped lots, and removal of an old deck all move the number. Tear-out and haul-off of a rotten deck is honest labor and it shows up on the quote.
Fasteners and hardware. Close to the water we use hot-dip galvanized or stainless hardware. It costs more than the shiny zinc stuff at the box store, and it's not optional if you want the deck to last. We see this a lot on Topsail Island: a five-year-old deck with framing that's fine but connectors that are rusting through.
Where the money is well spent
If the budget is tight, put the money into the frame, the footings, and the hardware. That's the part you can't easily upgrade later. Decking boards and railing can be replaced down the road; a poorly built frame means starting over.
We'd rather build you a smaller deck that's framed right than a bigger one that's framed cheap. That's not a sales line, it's just what twenty-plus years of repair calls in this county have taught us.
Where homeowners overspend
Exotic hardwoods that need constant oiling in our humidity, oversized decks that never get used past the grill zone, and premium composite on a rental property that's getting sandy foot traffic and dragged furniture anyway. We'll tell you when a mid-grade option makes more sense.
Don't forget the permit
New deck construction in New Hanover County requires a building permit, and the incorporated beach towns have their own inspections departments. Permit costs are modest compared to the project, and we handle the paperwork as part of the job. A deck built without a permit becomes your problem at resale or after a storm claim.
Getting a real number
The only way to price a deck accurately is to look at the site: grade, soil, access, the house connection, and what you actually want to do out there. We provide free written estimates with the scope spelled out line by line, so you can compare bids on equal footing.
If you're pricing a deck anywhere in the Wilmington area, request a free written estimate through our estimate page and we'll come take a look.
Common questions
How much does a new deck cost in Wilmington, NC?
Most of the decks we build run $8,000 to $18,000, with the full range spanning roughly $4,000 for a small ground-level wood deck up to $25,000 for a large raised composite deck with upgraded railing. Size, height, material, and railing choice drive most of the difference.
Is composite decking worth the extra cost on the coast?
Often, yes. Pressure-treated wood needs cleaning and resealing on a regular cycle in our humidity, and composite skips that. Over ten years the total cost gap narrows a lot, but for rentals or tight budgets, wood is still a solid choice.
Do I need a permit to build a deck in Wilmington?
Yes. New deck construction requires a building permit in New Hanover County and in the beach towns, and inspections are part of the process. We include permitting in every deck project we build.
