Which Decking Material Lasts Longer in Middle Tennessee’s Climate?

When building a new deck, one of the biggest decisions you’ll face is choosing the right material. For many homeowners across Franklin, Brentwood, and Nolensville, it comes down to two main options: pressure-treated wood or composite decking (like Trex). Both have their advantages, but if you’re thinking long-term—especially in the unpredictable Tennessee weather—some clear differences emerge.

At Decked Out Tennessee, we’ve worked with both materials extensively. Let’s break down the pros, cons, and longevity of each so you can make the best choice for your home.

🌲 Pressure-Treated Wood: Traditional, Affordable, and Hands-On

Pressure-treated wood is a long-standing favorite. It’s natural, widely available, and relatively affordable upfront. The wood is treated with preservatives to resist rot, decay, and insects—essential in humid climates like ours.

Pros:
✔ Budget-friendly
✔ Easy to customize with stains and paints
✔ Repairs can often be DIY

Cons:
✘ Requires regular maintenance (staining, sealing, cleaning)
✘ Susceptible to splintering, warping, and fading over time
✘ Typically lasts 10–15 years in Tennessee’s climate with proper care

Best for: Homeowners who enjoy the natural look of wood and are willing to maintain it annually.

♻️ Composite Decking (Like Trex): Low Maintenance, High Durability

Composite decking blends wood fibers and recycled plastics to create a tough, weather-resistant surface that mimics the look of wood—without all the upkeep.

Pros:
✔ Won’t rot, warp, or splinter
✔ Resists fading and stains
✔ Requires minimal maintenance (just an occasional wash)
✔ Lasts 25–30+ years, even in humid or hot climates

Cons:
✘ Higher initial cost than wood
✘ Can get warmer underfoot in direct sunlight
✘ Limited refinishing options (color and texture are permanent)

Best for: Homeowners who want a long-lasting, low-maintenance solution that still looks great year after year.

🌦️ How Tennessee’s Weather Affects Both

Middle Tennessee’s mix of hot summers, heavy humidity, sudden storms, and occasional cold snaps can be tough on outdoor materials.

• Pressure-treated wood tends to expand and contract with weather swings, which can cause warping or cracking. It also absorbs moisture, requiring sealing to prevent rot.

• Composite decking handles weather extremes better. It doesn’t absorb water, and it’s more resistant to UV rays and temperature changes, making it ideal for decks exposed to sun or rain.

💡 The Verdict: Which One Lasts Longer?

In terms of longevity, composite decking like Trex wins—hands down. It can outlast pressure-treated wood by a decade or more, and it keeps its appearance with little effort.

That said, pressure-treated wood can still be a great choice for budget-conscious homeowners who are comfortable with regular upkeep.

🛠️ Let Us Help You Choose the Right Material

Not sure which one is right for your home, lifestyle, or budget? That’s where we come in. At Decked Out Tennessee, we build custom decks tailored to your needs—and we’re happy to walk you through all your options.

📍 Serving Franklin, Brentwood, Nolensville, and the surrounding Middle Tennessee area.

Contact us today for a free consultation, and let’s start planning a deck that’s built to last—no matter what Tennessee weather brings.