Most professionally built composite decks in Chicago’s West and Northwest suburbs currently cost between $30,000 and $60,000. A simple, low, single-level deck with limited railing may cost less, while elevation, long stair runs, extensive railing, waterproofing, shade structures, and hardscape can push the project above that range.
The selected boards control only the decking allowance within a Trex deck cost. Footings, framing, hardware, fascia, railings, stairs, labor, demolition, and outdoor living features are priced independently.
How Much Does a Trex Deck Cost in Chicago’s Suburbs?
The $30,000 to $60,000 range above reflects current composite-deck projects across American Deck Builders’ service area. It is not a standard Trex price. The cost of a Trex project still depends on the board collection, deck size, height, framing, railings, stairs, site conditions, and any additional outdoor living features.
That distinction is important when looking at the Cary, Rolling Meadows, and Algonquin projects later in this article. Their published investment ranges show how framing, resurfacing, railing, lighting, hardscape, and shade structures affected three real projects, but those older prices should not be treated as current estimates for similar work.
What Is Included in a Trex Deck Price?
Two estimates are comparable only when they include the same construction scope:
- Trex deck boards and fascia: The selected collection, color, board profile, picture framing, and fascia details affect material quantities and installation time.
- Framing and substructure: Joists, beams, posts, ledger attachment, blocking, bracing, and footings support the finished deck.
- Hardware and fasteners: Connectors, flashing, structural hardware, and hidden or face-fastening systems are necessary parts of the build.
- Railings and stairs: These require separate materials, framing, layout, and labor. They are not included in the price of decking boards.
- Labor, removal, and access: Demolition, disposal, material handling, crew access, and finish work all affect installation cost.
- Design, engineering, and permits: The estimate should state what drawings, structural planning, permit costs, and related work are included.
Waterproofing, lighting, privacy screens, pergolas, patios, fire features, seating, and outdoor kitchens need their own quantities and labor allowances; deck area alone cannot price them.
How the Trex Collection Changes Deck Cost
The Trex collection you choose changes the decking portion of the estimate, not every part of the project. Trex currently positions Enhance as its more affordable composite collection, followed by Select, Transcend, and Transcend Lineage, with Signature at the luxury end of the composite lineup. Moving to a higher-priced board matters more on a large deck with extensive surface area than on a project where framing, stairs, railings, and added features make up a larger share of the budget.
Trex Enhance and Select: Enhance uses a lighter, scalloped profile and is Trex’s more affordable composite option. Select uses a solid profile and sits at a higher price point. The Rolling Meadows project shows why the board choice should still be considered separately from the total project cost: it paired Trex Enhance decking with Transcend railing, lighting, and a PVC lattice enclosure.
Trex Transcend, Transcend Lineage, and Signature: These collections sit higher in the Trex product range, with Signature currently positioned at the luxury level. The Algonquin project used Transcend Lineage decking, Transcend railing, a pergola, post lighting, and built-in seating. That combination shows why moving to a premium board is only one part of the increase in a finished project price.
Seven Factors That Affect Trex Deck Installation Cost
1. Deck Size
More square footage requires more decking, joists, beams, fasteners, and installation time. The increase is not perfectly proportional, however. Design work, mobilization, permits, and some structural tasks do not double simply because the deck surface doubles. Meanwhile, a larger perimeter or an unusual shape can increase fascia and labor faster than the floor area suggests.
2. New Construction Versus Resurfacing
A new custom deck needs footings, posts, beams, joists, hardware, and a complete surface system. A resurfacing project may reuse portions of an existing structure, but only after the framing, connections, and foundations are found suitable.
Deck remodeling and resurfacing should not be treated as an automatic low-cost shortcut. Replacing damaged framing, correcting joist spacing, modifying stairs, or rebuilding rail connections can narrow the difference between resurfacing and replacement. An inspection determines which approach is realistic.
3. Deck Height and Framing
A ground-level rectangle and an elevated deck of the same square footage have different structural demands. Height can add longer posts, more bracing, larger beams, stairs, landings, and railing. Multi-level layouts add connections and transitions that require more planning and labor. These costs are mostly independent of the Trex collection chosen for the surface.
4. Railings
Railing is often one of the largest variables outside deck size. Total linear footage matters, but so do post spacing, infill, gates, corners, stair rails, and the selected system. Composite, aluminum, cable, and glass options have different material and installation requirements.
Choosing Trex decking does not lock the project into one railing price. Review the deck railing allowance separately so you can see whether a change in railing has a larger budget effect than a change in boards.
5. Stairs
Stairs add more than treads. They require stringers or other stair framing, risers when included, railings, posts, landings, and often lighting. A low deck with three steps has a different cost structure from an elevated deck with a long stair run and an intermediate landing. Stair placement can also change how much railing the main deck needs.
6. Site and Structural Conditions
Access, demolition, grade changes, existing foundations, framing condition, and engineering needs affect labor before the first Trex board is installed. A fenced yard with narrow access may require more manual material handling. Resurfacing can reveal rot or undersized components after the old boards are removed. Sloped properties may call for taller supports or a different layout.
The estimate should also identify permit costs and responsibilities. American Deck Builders handles necessary permits and provides the documentation needed for HOA approval as part of its project process.
7. Added Outdoor Living Features
Lighting, pergolas, privacy screens, lattice or skirting, built-in seating, Trex RainEscape, patios, fire features, and outdoor kitchens can shift the overall budget much more than moving one step within the Trex decking lineup.
For example, a selective deck lighting plan may focus on stairs and key circulation areas, while a larger package could include post caps, rail lights, risers, and task lighting. A pergola introduces its own structure, materials, footings or connections, and finish details. These choices should be priced as distinct parts of the plan.
What Three Real Trex Projects Tell Us About Cost
These historical ranges are not current quotes. They show which non-decking components were included in three different Trex projects.
Cary: Trex Deck With a Paver Patio
Historical investment: $20,000–$30,000. The Cary Trex project included a new frame, Trex decking, Trex fascia, Trex Select railing, a Unilock Brussels block paver patio, and PVC lattice around a retaining wall.
Even this lower-investment example included structural work, railing, hardscape, and enclosure details in addition to deck boards.
Rolling Meadows: Trex Resurfacing With Lighting
Historical investment: $30,000–$40,000. The Rolling Meadows deck makeover used Trex Enhance decking, Trex Transcend railing, deck and riser lighting, and a PVC lattice enclosure.
This was a re-deck rather than a complete new build, yet premium railing, lighting, and finish work remained substantial parts of the investment.
Algonquin: Trex Lineage With a Pergola
Historical investment: $30,000–$40,000. The Algonquin Trex Lineage project combined resurfacing with Trex Lineage decking, Trex Transcend railing, a Lumber Rock pergola over the grilling area, post lighting, and built-in seating.
Premium decking mattered, but the pergola, railing, lighting, seating, and remodeling work also shaped the total. Comparing this project with Cary or Rolling Meadows solely by square footage or product line would miss most of the cost story.
Why Trex Deck Price per Square Foot Can Be Misleading
A Trex deck price per square foot can help compare board allowances or very similar designs, but it is unreliable as a universal installed-project number. Two 400-square-foot decks may use the same amount of surface decking while requiring very different structural and finish work.
One might be a low, rectangular platform with a short stair and limited railing. The other might sit high above grade with two staircases, extensive railing, premium Trex boards, integrated lighting, skirting, a pergola, and under-deck waterproofing. Dividing both totals by 400 creates two dramatically different square-foot prices without explaining the reason.
Trex also notes that actual costs vary with geography, site conditions, seasonality, design complexity, product availability, stairs, angles, curves, lighting, and other features. Its published material estimates include specific components, but professionally installed projects also carry design, labor, structure, and site costs. Use per-square-foot figures to ask better questions, not as a substitute for a defined scope.
Does Trex Cost More Than Wood?
Trex generally requires a higher initial material investment than pressure-treated wood. The tradeoff is ongoing maintenance: Trex decking does not need the recurring staining, sealing, or painting associated with a wood surface.
That does not mean Trex will always be cheaper over a fixed number of years. The answer depends on the Trex line, wood option, maintenance frequency, labor rates, repairs, and how long the homeowner keeps the deck. A useful comparison separates the initial project cost from future maintenance rather than assuming one material automatically wins.
How to Build a Trex Deck Around Your Budget
Reducing deck size can save money, but changing design and feature choices may preserve more usable space.
- Compare two Trex collections within the same design to see the real total-project difference.
- Simplify curves, angles, picture framing, or multi-level transitions that add cuts and framing.
- Review railing system and linear footage separately from the decking allowance.
- Keep the layout to one level when a second level does not solve a clear use or grade problem.
- Place lighting where it improves safety and function rather than treating every post as mandatory.
- Plan a pergola, patio, or outdoor kitchen as a later phase when the structure can accommodate future work.
- Reuse existing framing only when a structural inspection confirms that resurfacing is appropriate.
Protect structural work and daily function first. Downgrading the visible board while keeping an expensive layout unchanged may produce a smaller reduction than expected.
Get an Accurate Trex Deck Estimate for Your Home
American Deck Builders has built more than 5,000 decks and has more than 30 years of experience serving Chicago’s West and Northwest suburbs. The company uses 3D design to help homeowners review the project before construction, assigns a project manager, and provides detailed pricing so the scope can be evaluated as a complete plan.
Bring the full wish list to the design conversation: size, stairs, railings, lighting, shade, patio work, and future additions. Pricing those choices together shows what a Trex collection upgrade actually does to the complete project.
Get a free estimate for a Trex deck designed around your home, priorities, and budget.
Trex Deck Cost FAQs
How much does a Trex deck cost in Chicago’s suburbs?
American Deck Builders reports that many professionally built composite projects in its service area currently fall around $30,000 to $60,000, with simpler projects below that range and complex projects above it. A Trex-specific estimate depends on the collection, size, structural work, railing, stairs, access, and added features.
Which Trex decking is the least expensive?
Trex places Enhance at the lower-cost end of its composite collections. The final project cost still includes framing, railing, stairs, fascia, labor, and site conditions.
How much more does Trex Transcend cost than Trex Enhance?
There is no reliable universal percentage. Material pricing changes with suppliers, availability, colors, profiles, and quantities. The effect on the total project also depends on how much of the budget is allocated to decking versus framing, railings, stairs, lighting, and other work.
Does Trex railing increase the cost of a deck?
Yes. Railing material, total linear footage, posts, corners, gates, and stair sections can materially affect the price. Trex decking and Trex railing should be listed separately in an estimate so you can see how each selection changes the total.
Can an existing deck be resurfaced with Trex?
It can when the existing footings, framing, connections, and joist spacing are suitable for reuse. The old decking must be removed and the structure inspected before a contractor can determine whether resurfacing, structural repairs, or complete replacement is the right approach.
