Ask a Deck Contractor: What Materials Are Best for Long-Lasting Decks?

If you're planning to build or replace your deck, one of the most important decisions you'll make is what material to use. The right choice can mean the difference between a deck that lasts 10 years and one that looks great for 30 or more. To help you make an informed decision, we asked a professional deck contractor Idaho Falls to break down the pros and cons of the most popular decking materials—wood, composite, PVC, aluminum, and more.

Here’s what you need to know about each option when it comes to longevity, maintenance, cost, and appearance.

1. Pressure-Treated Wood: Affordable, But High Maintenance

Average lifespan: 10–15 years
Cost: $
Maintenance: High

Pressure-treated wood is one of the most common and affordable options for building decks. It’s chemically treated to resist rot, moisture, and pests—but that doesn’t mean it’s maintenance-free. A deck contractor will tell you that pressure-treated wood needs annual sealing, staining, or painting to stay in good shape.

Pros:

• Inexpensive upfront
  
  
• Easy to cut and install
  
  
• Readily available
  
  

Cons:

• Prone to cracking, splintering, and warping
  
  
• Requires frequent maintenance
  
  
• Shorter lifespan compared to other materials
  
  

2. Cedar and Redwood: Naturally Beautiful, Moderately Durable

Average lifespan: 15–20 years
Cost: $$
Maintenance: Medium

Both cedar and redwood are naturally resistant to insects and rot, making them better than standard pressure-treated lumber in terms of longevity. These woods are prized for their warm color and smooth texture, but they still need regular sealing or staining to stay protected.

Pros:

• Naturally resistant to decay
  
  
• Rich, natural color
  
  
• Easier on bare feet than composite or PVC
  
  

Cons:

• Can be expensive depending on your region
  
  
• Requires upkeep to maintain its color and strength
  
  
• May weather to gray if not treated regularly
  
  

3. Composite Decking: The Low-Maintenance Favorite

Average lifespan: 25–30+ years
Cost: $$$
Maintenance: Low

Composite decking is made from a mix of wood fibers and plastic. Many deck contractors recommend composite as a long-term investment thanks to its durability and ease of maintenance. It resists fading, staining, warping, and insect damage.

Pros:

• No staining or sealing required
  
  
• Won’t rot, splinter, or warp
  
  
• Available in a wide range of colors and styles
  
  

Cons:

• More expensive than wood up front
  
  
• Can retain heat in direct sun
  
  
• May show scratches or scuffs over time
  
  

4. PVC (Plastic) Decking: Ultra-Durable and Water-Resistant

Average lifespan: 30+ years
Cost: $$$
Maintenance: Very Low

If you're building a deck near a pool, hot tub, or in a high-moisture climate, a deck contractor might steer you toward PVC. Made entirely from plastic, PVC decking is highly water-resistant and one of the most long-lasting options available.

Pros:

• 100% moisture-resistant
  
  
• Very low maintenance
  
  
• Long-lasting color and finish
  
  

Cons:

• One of the most expensive options
  
  
• Lacks the natural look and feel of wood
  
  
• Can be slippery when wet
  
  

5. Aluminum Decking: The Most Durable (and Pricey) Option

Average lifespan: 30–50 years
Cost: $$$$
Maintenance: Minimal

Aluminum decking is the longest-lasting of all decking materials and is virtually impervious to the elements. It won’t rust, rot, crack, or fade, making it ideal for harsh climates. A deck contractor might suggest this material for homeowners looking for a truly worry-free deck—especially in coastal areas.

Pros:

• Extremely long-lasting and strong
  
  
• Fire-resistant and insect-proof
  
  
• Doesn’t absorb heat like composite or PVC
  
  

Cons:

• High initial cost
  
  
• Limited style and color options
  
  
• Can have a more industrial appearance
  
  

So, What Does a Deck Contractor Recommend?

Most deck contractors will say: it depends on your priorities.

• If budget is your top concern, pressure-treated wood is your best bet—just be ready to maintain it regularly.
  
  
• If you want low maintenance and a natural wood look, composite is often the sweet spot.
  
  
• For wet environments, PVC wins for water resistance.
  
  
• If you want the deck to outlast your mortgage, aluminum is nearly indestructible (and priced accordingly).
  
  

The bottom line? There’s no one-size-fits-all solution. A professional deck contractor can evaluate your location, usage needs, and budget to help you choose the best material for your long-lasting deck.

Final Tip:

Before you commit, ask your deck contractor for samples and project photos of each material type. Seeing and feeling the options in person can help you visualize how your future deck will look and perform for years to come.