Composite vs Wood Deck: Which Should You Actually Build? (2026)

Build composite if you want to stop thinking about the deck after it is built and you can live with a surface that runs hot in direct sun. Build wood if the upfront price matters most, you do not mind restaining, and you plan to sell or rebuild within 10 to 15 years. Over 15 to 20 years the two come out closer than the sticker prices suggest.

This guide walks through the money, the heat, the durability, and who should pick which. The cost figures come from composite makers and cost guides, so they lean toward composite, and I flag where that matters.

What the arguments are really about

People who compare these two decks tend to argue about four things: price today, upkeep, how hot the boards get and how long the deck lasts. Each one has a number attached, so here are the numbers.

Cost today

Lawn Love’s 2026 guide lists material cost per square foot for boards only:

Decking	Board cost per sq ft	Typical life
Pressure-treated pine	$2 to $3.75	10 to 15 years
Cedar	$3.40 to $6.00	not stated
Redwood	$5.50 to $19	not stated
Ipe (tropical hardwood)	$9 to $16	50+ years
Composite	$4.48 to $13.30	25 to 30 years

For a 300 sq ft deck, that is:

• Pine boards: 300 x $2 = $600 up to 300 x $3.75 = $1,125
• Composite boards: 300 x $4.48 = $1,344 up to 300 x $13.30 = $3,990

So the boards cost you about $744 to $2,865 more for composite. That is real money, but boards are a small slice of the whole job. TimberTech says materials are roughly 20% of total deck cost, with the frame and labor making up most of the rest. It says composite boards cost 20% to 40% more than pressure-treated, and that upgrading adds as little as 15% to the total project cost.

Lawn Love puts the average installed composite deck at $8,850 and a typical range at $5,100 to $11,200. Its per-square-foot installed figures for composite are higher ($25 to $50), and the page is inconsistent with itself, so get local quotes before trusting any one number. The Deck Cost Calculator lets you plug in your own square footage and compare.

Cost of ownership over 15 years

This is where composite makers make their case. Their numbers are marketing, so I use them only as an illustration.

Trex estimates about $400 a year to clean and stain a wood deck, and roughly $200 a year to maintain composite (it states both $20 and $200 in different places, so I use the larger figure). TimberTech says composite costs significantly less over 15 years than wood.

Say a wood deck costs $9,000 to build. Using TimberTech’s 15% figure, the composite version costs 9,000 x 1.15 = $10,350.

• Wood over 15 years: $9,000 + (15 x $400) = $15,000
• Composite over 15 years: $10,350 + (15 x $200) = $13,350

That is a $1,650 edge for composite on paper. Two things shrink it. If you stain the wood yourself for the price of stain and a weekend, your yearly cost drops well below $400. And composite still needs cleaning, which Trex describes as soap, water and a few hours a year. Use the Deck Stain Calculator to see how much stain your deck actually takes before you accept anyone’s yearly figure.

The long game is different. Wood is rated at 10 to 15 years in the sources I read (Lawn Love, TimberTech and Trex all land there). If you rebuild at year 15, that is a second $9,000 deck. A composite deck rated at 25 to 30 years has not reached that point.

The heat problem

Composite is plastic and wood fiber, and plastic holds heat. A Florida lumber retailer tested boards side by side in direct summer sun with an infrared thermometer. Several Trex and TimberTech composite boards reached 140 degrees F or higher. Plantation teak read about 120 degrees F, more than 20 degrees cooler than many composites, and the other hardwoods they tried also stayed cooler than the composites. The retailer sells hardwood, so weigh that, and it gave no air temperature or time of day. Even so, the direction matches what homeowners complain about.

Color matters almost as much as material. Lighter boards ran cooler than darker boards of the same product, and Trex’s Transcend Lineage uses heat-mitigating technology the retailer says runs cooler than standard Trex.

If your deck gets full afternoon sun and your family goes barefoot, pick a light color, buy a heat-mitigating line, or put shade over it. A pergola or umbrella solves this for less than the price difference between tiers.

Durability, honestly

Composite resists rot and insects. That is the main reason people pay for it. Trex also says scuffing and scratching from pets, toys and heavy foot traffic can affect the look, so composite is not scratch-proof.

Wood fails differently. Trex lists moisture, UV and insect damage as the causes, with rot, warping and splintering as the results, and ledger boards and joists as the weak points. The USDA Forest Products Laboratory says weather makes wood shrink and swell, and that without a finish decks develop checks and cracks, raised grain and mildew. Applying a finish reduces those problems.

One fact applies to both. Trex cites the Consumer Product Safety Commission for about 2,900 injuries and two deaths linked to deck, balcony and porch collapses or failures, and names missing ledger flashing, skipped joist tape and untreated wood in ground contact as the causes. The boards are not what falls down. A composite surface on a poorly built frame is still a poorly built deck, so spend on the structure first.

Trex tiers and what they buy

Trex lists these warranties by line:

Line	Warranty
Enhance	25 years
Select	35 years
Transcend	50 years
Transcend Lineage	50 years
Signature	50 years

The retailer I cited above says Lineage is the line with heat-mitigating technology. The other differences between lines are cosmetic and structural details I did not verify, so ask a dealer to show you the boards side by side. A warranty is a promise about specific defects under stated conditions, so read the fine print before paying for a higher tier.

Lawn Love gives these price bands by brand for boards: FiberOn $4.48 to $13.18, Trex $5 to $11 and TimberTech or AZEK $7.15 to $13.40 per sq ft, with coatings adding about $1 per sq ft.

Who should pick which

Pick composite if:

• You plan to keep the house 15 years or more.
• The deck sits in shade or you will add shade, or you choose a light color.
• You do not want to stain every year or two.
• The deck is high off the ground, where replacing boards later is a real job.

Pick wood if:

• The budget is tight now and you may sell or rebuild within 10 to 15 years.
• You like a natural look and do not mind restaining.
• You want a cool surface in a hot climate and will pay for hardwood or choose a pale wood.
• You are comfortable with a weekend of maintenance.

How to decide

1. Measure the deck and total the square feet. The Deck Calculator estimates boards, joists and posts.
2. Price both materials from a local supplier, not a national average.
3. Get one quote with pressure-treated and one with composite from the same builder, so labor and frame are the same.
4. Add the yearly upkeep you will really do, in dollars or hours.
5. If you pick composite, use the Composite Decking Calculator to figure out board counts with the right waste factor.

If the quote difference is under about 20% of the total project, composite is easy to justify. If it is 40% or more, wood with a good finish schedule is the sensible choice, and you can put the difference toward a better frame.

Sources

• Lawn Love, Composite vs. Wood Decking Cost (updated December 2025, 2026 prices)
• TimberTech, Composite Decking Material Cost (2026)
• Trex, How Long Does a Deck Last
• Advantage Lumber, Composite vs. PVC vs. Hardwood for Full Sun (July 2026)
• USDA Forest Products Laboratory, Finishing of Wood Decks (abstract)