Trex Deck Per Square Foot: What You Actually Pay in 2026

The advertised price of a Trex board has almost nothing to do with what your finished deck will cost. Once you factor in railing, fasteners, joist tape, and labor, a typical Trex deck per square foot runs three to four times what you paid for boards alone. After pricing dozens of Trex builds across the Mid-Atlantic and Southeast, here is what the math actually looks like and where most homeowners get caught off guard.

Trex Board Pricing by Line

Trex sells composite decking in four major tiers. Pricing reflects current 2026 retail at Lowe’s, Home Depot, and specialty lumberyards. These are board-only numbers before installation.

• Trex Enhance Basics: $2.40 to $3.10 per linear foot, roughly $2.70 to $3.50 per square foot of installed surface.
• Trex Enhance Naturals: $3.20 to $4.10 per linear foot, around $3.60 to $4.60 per square foot.
• Trex Select: $3.60 to $4.60 per linear foot, $4.05 to $5.20 per square foot.
• Trex Transcend: $4.80 to $6.20 per linear foot, $5.40 to $7.00 per square foot.
• Trex Signature: $7.20 to $9.80 per linear foot, $8.10 to $11.05 per square foot.

Multiply the per-square-foot number by 1.15 to account for waste. A 320-square-foot deck actually needs about 368 square feet of boards purchased.

Substructure Adds Up Quietly

Composite boards still ride on a wood (or steel) frame. For a standard ground-level deck, the substructure runs $3.50 to $6.00 per square foot. Elevated decks with longer post spans, footings, and ledger flashing push that to $7 to $12 per square foot.

Pressure-treated joists, posts, and beams are the cheapest. Trex Elevations steel framing adds about $2 to $4 per square foot but eliminates the rot and movement that plague wood substructures. Worth it on any deck you expect to outlast the house mortgage.

Hidden Fasteners and Joist Protection

Trex grooved boards use hidden fasteners — typically Trex Hideaway clips. The clips cost about $0.85 to $1.10 per square foot when factored across an entire deck.

Trex Protect joist tape is another line item most quotes skip. It runs $0.40 to $0.65 per square foot but doubles the life of pressure-treated joists by sealing the screw penetrations from water. Use it on the tops of every joist, ledger, and beam.

Railing: The Biggest Variable

Trex railing pricing varies wildly depending on infill type.

• Trex Enhance composite railing: $32 to $48 per linear foot installed.
• Trex Select Railing: $45 to $62 per linear foot.
• Trex Transcend Railing with composite balusters: $52 to $72 per linear foot.
• Trex Signature aluminum railing: $72 to $98 per linear foot.
• Cable rail infill upgrade: Add $35 to $55 per linear foot over standard balusters.

A 16 by 20 foot deck typically needs 60 linear feet of railing. With Transcend composite railing, that is $3,120 to $4,320 — sometimes more than the boards themselves.

Labor: Where Quotes Vary Most

Installed Trex deck per square foot pricing including labor currently runs as follows in most US markets.

• Enhance Basics fully installed: $26 to $34 per square foot.
• Enhance Naturals installed: $30 to $40 per square foot.
• Select installed: $34 to $44 per square foot.
• Transcend installed: $42 to $58 per square foot.
• Signature installed: $58 to $82 per square foot.

Coastal markets, urban areas, and any project with permitting headaches push the high end. Rural Midwest and Southeast pricing runs at or below the low end.

Stairs, Picture Frames, and Other Upgrades

Stairs cost two to three times more per square foot than the main deck because of the labor density. Plan $180 to $320 per linear foot of stair tread for full installation including stringers, treads, risers, and railing.

Picture-framing the deck (running a contrasting border around the perimeter) adds about 12 to 18 percent to material costs and 8 to 12 percent to labor. It looks great but is genuinely optional. Skip it on a tight budget and nobody will notice from 20 feet away.

Total Project Pricing for Common Deck Sizes

Here is what fully installed Trex decks currently cost, including railing, stairs, and substructure.

• 10×12 deck (120 sq ft) Enhance Naturals: $5,200 to $7,400.
• 12×16 deck (192 sq ft) Select: $8,800 to $12,400.
• 16×20 deck (320 sq ft) Transcend: $16,500 to $23,800.
• 20×24 deck (480 sq ft) Signature: $32,000 to $44,500.
• L-shaped 600 sq ft deck Transcend: $28,000 to $39,000.

Permit and Inspection Costs

Most municipalities require permits for any attached deck over 30 inches above grade. Permit fees run $150 to $750 depending on locality. Engineered drawings (often required for elevated decks) add $400 to $1,500 from a structural engineer.

Inspections happen at footing, framing, and final stages. Allow two to three weeks between inspections in busy seasons. Skipping permits to save $400 routinely costs homeowners $5,000-plus in tear-down and rebuild when discovered at home sale.

How to Cut 15 Percent Off Without Cutting Quality

Order all materials at once during fall or winter to catch off-season pricing. Most Trex retailers run promotions in October through February of 10 to 15 percent off. Pick a stock color rather than a premium one — Enhance Naturals in Beach Dune costs the same as a custom color but ships in days instead of weeks. Reuse existing footings if your old deck has them and they meet code. A structural engineer can verify in an hour for $150 to $250.

When Trex Pays Back vs When It Does Not

Trex makes financial sense if you plan to stay in your home five-plus years and the deck sees real use. The maintenance savings versus pressure-treated wood add up to roughly $400 to $700 per year in stain, sealant, and labor avoided. Over ten years, that recovers most of the price premium. For a deck that gets used twice a year by a long-distance owner, pressure-treated wood probably wins on total cost.

Comparing Trex to Other Composite Brands

Trex shares the composite market with TimberTech, Fiberon, MoistureShield, and Deckorators. Trex Enhance and TimberTech EDGE are direct competitors at similar price points. Trex Transcend competes with TimberTech AZEK Vintage and Fiberon Concordia.

The per-square-foot price differences between brands rarely exceed 8 to 12 percent for comparable tiers. Service availability matters more — pick the brand your local contractors actually install regularly. A great Fiberon installer beats a mediocre Trex installer on every dimension that matters.

Resale Value Considerations

Trex decks improve home resale value but rarely recover 100 percent of cost. Remodeling Magazine’s annual Cost vs Value report shows composite decks recover 50 to 65 percent of their cost at sale, while wood decks recover slightly higher at 60 to 75 percent. The numbers favor wood on pure recovery, but composite decks tend to look better at sale time after 10-plus years of weather.

If you are building for resale within 3 years, pressure-treated wood with a quality stain may make better financial sense. For a forever home or a 10-plus year hold, Trex pulls ahead because year-eight wood decks look tired while year-eight composite decks still look new. Match the product to the use, and the per-square-foot price stops looking abstract.