How Much Does a Composite Deck Cost in South Jersey? (2026 Guide)

Oct 8

3 min read

It's the first question almost everyone asks us, usually before we've even seen the backyard: "Ballpark, what's a composite deck going to run me?"

Fair question. The honest answer is that it depends on more than square footage. But you deserve real numbers to plan around, so here's what composite decks are actually costing homeowners in South Jersey this year, and what moves the price.

The short answer

For a professionally built composite deck in South Jersey, most homeowners spend somewhere between $55 and $140 per square foot, fully installed. That includes the framing, decking, railings, stairs, permit, and labor.

That's a wide range, so here's how it usually breaks out:

So a 16 x 20 ground-level deck with a set of stairs and mid-range boards often lands in the $25,000 to $35,000 range. A second-story deck of the same size with premium boards and railing can easily go past $45,000.

What actually drives the price

1. Height off the ground. A deck 24 inches off the grade and a deck coming off a second-floor slider are two different projects. Taller decks need bigger posts, more bracing, longer stair runs, and more careful footing work. Height is one of the biggest cost jumps we see.

2. The boards you pick. Every major brand has a good, better, and best line. The entry boards look great and hold up well. The upper lines add richer color variation, better heat and stain resistance, and longer fade warranties. PVC boards cost the most but handle moisture and heat best.

3. Railing. People are often surprised how much of the budget goes to railing. On a raised deck with a lot of perimeter, railing can be 25 to 35 percent of the total. Composite railing is the budget pick. Aluminum and cable railing cost more but look cleaner and last longer.

4. Framing. Most composite decks are still framed with pressure-treated lumber. It works, but wood framing will eventually move, twist, and rot, usually long before the composite boards wear out. Steel or aluminum framing costs more up front but lasts as long as the boards on top of it. (We cover this in detail in our post on steel vs. wood deck framing.)

5. Shape and design. A plain rectangle is the most efficient thing to build. Angles, curves, multiple levels, built-in benches, and picture-frame borders all add labor and material waste.

6. Tear-out and site conditions. Removing an old deck, hauling it away, working around a pool, or dealing with a steep or soft yard all add cost. Tight access where materials have to be carried by hand does too.

7. Permits and inspections. Every town in New Jersey requires a permit for a new deck, and most require footing, framing, and final inspections. The fees themselves are usually modest, but a builder who handles the drawings, the application, and the inspections for you saves you a lot of time and headaches.

Is composite worth it over wood?

Pressure-treated wood is cheaper to build, usually 30 to 40 percent less. But wood needs to be cleaned, stained, and sealed every couple of years, and boards start splitting and splintering as they age. Add up ten or fifteen years of staining and board replacement, and composite usually comes out even or ahead. It also looks better every one of those years.

For most families planning to stay in their home for a while, composite is the better value.

Watch out for quotes that look too good

If one price comes in way below the others, find out why. The usual reasons:

Footings that aren't deep enough or are undersized
No permit pulled, which can cause problems when you sell the house
Cheaper fasteners and hardware that rust out
Joist spacing that's too wide for the boards, which voids the board warranty
No proper flashing where the deck attaches to the house, which leads to rot inside your walls

A deck is a structure people stand on, sometimes ten feet in the air. The difference between a good build and a bad one is mostly in the parts you can't see once it's done.

How to get an accurate number

The best way to get a real price is a site visit. We'll look at the height, the yard, how the deck will tie into the house, and how you want to use the space, then give you one clear price for the whole project.

Atlas Surfaces builds composite decks across South Jersey, Central Jersey, the Jersey Shore, and Eastern Pennsylvania. We're Pros and NADRA-certified, and we handle the design, permits, and inspections from start to finish.

Ready to plan your deck? Contact us to schedule a free site visit.