Decks · Composite Decks
Composite Decks

The surface lasts thirty years. Only if the rest does.

Composite solved the maintenance problem. No sealing, no staining, no grey board by year four. What it did not solve is what sits underneath. A surface rated for twenty-five to fifty years, on wood framing, is a finish outliving its own structure. We frame in steel for that reason.

The material decision

Three constructions, and they are not interchangeable.

“Composite” is one word for three different products. The difference is how much of the board is protected, and where it belongs.

Advanced PVC

No wood fibre at all

Nothing in the board for moisture to reach. Pool decks, elevated decks, anywhere water sits.

Lifetime product warranty, 50-year fade and stain.

Capped composite, 4-sided

Wood fibre, sealed on every face

The cap wraps all four sides, so no edge is left open. The right answer for most residential builds.

30-year warranty.

Capped composite, 3-sided

The underside left uncapped

Same board, one face open. A real upgrade from wood, but the open face is where moisture gets in.

25-year warranty.

4-SIDED CAP 3-SIDED CAP Sealed on every face Underside left open 30-year 25-year
The heavier line is capped polymer. That open underside on the right is the difference between a 30-year and a 25-year warranty.
Raised composite deck with skirting and stairs Tall composite deck with a skirted base and wide stairs Gray composite deck with a picture-frame border Upper deck dining area with white and black railing Glass railing and composite decking on a raised deck
Completed buildsComposite decks by Ace of Decks.
What we spec

TimberTech, and a specific collection for a specific house.

We are a TimberTech Authorized Dealer. The collection is chosen against your architecture, not off a chart.

  • Vintage and Landmark. Wire-brushed multitonal, or crosscut grain reading as white oak. Coastline, English Walnut, French White Oak. Class A rated.
  • Legacy and Reserve. Hand-scraped, or reclaimed-timber character. Espresso, Tigerwood, Driftwood, Antique Leather.
  • Terrain and Harvest. Quieter grain, soft solid colours, where the garden should lead.

Boards run 3½, 5½ or 7¼ inches wide. Width changes a deck’s proportion more than colour does.

The detail nobody quotes

Nothing on the surface. Everything removable.

Face-screwing puts several hundred screw heads across the one surface you are paying for. We do not do it. Field boards are grooved and held by CAMO EDGE hidden clips, setting a consistent 3/16-inch gap for drainage and movement.

Picture-frame borders are square-shouldered with no groove, so a clip cannot reach them. Those are set with Cortex: a top-down screw capped by a plug cut from your own deck board.

Pairing the two is about repair. A border board lifts years later by drilling the plug and backing out one screw, leaving the clipped field untouched. A face-screwed deck gives you no such move.

Steel joist Steel joist CAMO EDGE clip Cortex plug GROOVED FIELD BOARDS PICTURE-FRAME BORDER
Field and border are fastened two different ways on purpose, so the border lifts without disturbing the field.
What it sits on

Steel framing, at the spacing the board actually requires.

We frame on Fortress Evolution steel as standard: 16-gauge, G60 galvanized, Class A noncombustible. It will not rot, warp, split or sag, and it spans further than wood: fewer posts, a cleaner line underneath.

Spacing is not a preference. Composite runs at 16 inches on centre, and any board laid diagonally tightens to 12 inches. That is the manufacturer’s requirement, and it overrides the generic code table. Framing at 16 and then laying diagonally is a common, quietly serious error: the board spans further than it is rated to, and it shows up as bounce within a season.

16″ O.C. straight lay 12″ O.C. diagonal lay
Turning the boards forty-five degrees changes the framing beneath. Decided at design, not on site.
42″Minimum footing depth, the Illinois frost line
30 psfGround snow load designed against
Class AFire rating, steel frame and PVC collections
Two-story home with a new deck, pergola and wide stairs down to the pool Dining area under a louvered pergola on a gray composite deck Cable railing on a composite deck overlooking landscaping Deck stairs with cable railing lit at night above a pool Deck stairs with white railing down to the yard
Completed buildsRailing, stairs and lighting finish the deck as much as the boards do.
What it costs

What it costs, and why the range is wide.

A single-structure composite deck on steel framing, with railing and stairs, runs $60,000 to $90,000. The spread is mostly height, access and railing. A ground-level rectangle and an elevated deck reaching a second-storey door are not the same build.

Every project is priced from a completed 3D design rather than a square-foot figure. See the cost guide and how we work. Where a quote comes in far lower, the difference is almost always framing, fastening or footing depth: invisible on delivery day, decisive ten winters later.

Common questions

What people ask us.

Does composite decking get hot in the sun?

Any dark surface does, and colour matters more than brand. A deck facing full west is a different specification from a shaded one.

Can you put composite boards over my existing wood frame?

Sometimes, and we will say plainly when it is a bad idea. The frame has to be sound, correctly spaced, and have enough life left to carry a surface rated for decades.

Is it actually maintenance-free?

Maintenance-light, not maintenance-free. No sealing, staining or sanding, but it still wants washing, and grease and leaf tannin should not sit.

Who registers the manufacturer warranties?

We do, at closeout. Registration has to happen within 30 days of purchase or the coverage never starts, and homeowners usually discover that years later.

Let’s start with the floor.

Tell us about the house and how you want to use the space. We will walk you through construction, collection and structure before anything is committed.

Book a Discovery Call

More in decks & hardscape: custom decks & hardscapes · steel vs. wood framing · under-deck waterproofing
Serving Naperville, Hinsdale, Oak Brook and the western suburbs.

Tell us about your deck.

Ranges shown match the project type you select.

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