PVC vs. Composite vs. Wood Decking in Ontario

What’s the Best Choice for Your Backyard?

If you’re building a new deck in Ontario, one of the biggest decisions you’ll make is the decking material itself.

With our freeze-thaw winters, wet springs, and hot summer sun, not all materials perform the same.

Today’s most common options are:

• PVC decking

• Composite decking

• Pressure-treated lumber

• Cedar decking

Each has its place. Let’s break down what they’re made of, how they perform in Ontario weather, and what homeowners should consider.

What Are These Materials Actually Made Of?

Understanding composition helps explain performance.

🟢 PVC Decking (100% Synthetic)

PVC (polyvinyl chloride) decking is made entirely from synthetic plastic materials. There is no wood fiber inside the board.

Most modern PVC boards are:

• Extruded cellular PVC

• Reinforced internally for strength

• Fully capped for UV protection and colour retention

Because PVC contains no organic material:

• It does not absorb water

• It will not rot

• It is highly resistant to mold and mildew

🟠 Composite Decking (Wood + Plastic Blend)

Composite decking is made from:

• Recycled plastics

• Wood flour (finely ground wood fibers)

• Bonding agents and additives

• A durable outer protective cap

The wood fibers give composite a more natural look and texture. The plastic content protects it from rapid deterioration.

High-quality capped composite products are designed specifically to resist fading, staining, and moisture penetration.

🌲 Natural Wood Decking

Traditional wood decking options include:

Pressure-Treated Lumber

• Pine infused with chemical preservatives

• Designed to resist insects and rot

• Most affordable upfront option

Cedar

• Naturally rot-resistant softwood

• Rich colour and beautiful grain

• Chemical-free and naturally aromatic

Unlike PVC and composite, both pressure-treated and cedar are 100% organic wood products, which means they will expand, contract, dry, check, and weather over time.

🌡️ Comfort in Direct Sunlight

Ontario summers can be intense.

PVC

• Light-coloured PVC often runs cooler than many composite boards.

• Heats quickly in full sun but cools quickly once shaded.

• Some PVC boards may become warm in peak sun; footwear can be more comfortable during extreme heat.

• Certain manufacturers, including OC Lumber (WearDeck), offer specifically engineered “barefoot friendly” options designed to reduce heat absorption. If true barefoot comfort is a priority, those products are your best option.

Composite

• Slightly denser due to wood fiber content.

• May retain heat a bit longer than PVC.

• Light colours perform well; darker boards will feel warmer.

Wood (PT & Cedar)

• Natural wood can feel cooler initially but may splinter or crack over time.

• Dark-stained wood surfaces can get very hot.

• Requires regular sealing to maintain performance.

Colour plays a larger role than material type in surface temperature.

❄️ Winter Performance in Ontario

Our freeze-thaw cycles are tough on decking.

PVC

• Completely non-porous

• No moisture absorption

• Extremely resistant to cracking from freeze-thaw cycles

• Will not rot

Composite

• Highly water-resistant when capped

• Designed for cold climates

• Very stable when properly installed

Pressure-Treated Lumber

• Absorbs moisture

• Expands and contracts seasonally

• Can crack, split, and eventually rot

Cedar

• Naturally more rot-resistant than PT

• Still absorbs moisture

• Will weather and soften over time without maintenance

PVC and composite dramatically outperform wood in long-term winter durability.

🪵 Aesthetics

Composite

• Deep wood-grain patterns

• Traditional appearance

• Wide colour variety

PVC

• Clean, modern look

• Crisp finishes

• Contemporary colour palettes

Cedar

• Natural warmth

• Unique grain variation

• Ages beautifully if maintained

Pressure-Treated

• Functional and traditional

• Requires staining to enhance appearance

This decision often comes down to personal taste and long-term maintenance goals.

🔨 Durability & Lifespan

PVC

• 30–50+ year potential lifespan

• Highly resistant to moisture, mold, and insects

• Minimal surface deterioration

Composite

• 25–35+ year potential lifespan

• Strong resistance to fading and staining

• Very durable in residential use

Pressure-Treated

• 10–20 year lifespan depending on maintenance

• Requires ongoing sealing and upkeep

Cedar

• 15–25 year lifespan with maintenance

• Needs regular staining or oiling

Wood requires ongoing maintenance. PVC and composite do not.

The Structural Conversation Most Homeowners Don’t Hear

Even when installing premium PVC or composite decking boards, traditional pressure-treated framing underneath can still:

• Expand and contract

• Twist or crown

• Absorb moisture

• Eventually rot or decay over time

We install joist flashing tape on all pressure-treated framing to significantly extend its lifespan and protect against water penetration.

However, for homeowners wanting a truly long-term structural solution, we offer upgraded framing options.

🧱 OC Lumber (Fiberglass Composite) Framing

OC Lumber structural framing is made from fiberglass-reinforced composite material and is approved for structural use under Ontario building code requirements.

Benefits:

• Will not rot

• Does not absorb water

• No twisting or warping

• Extremely stable long-term

• Designed to last as long as premium deck boards

🏗️ Fortress Steel Framing

Fortress steel framing offers:

• Galvanized protection against corrosion

• Zero risk of rot

• No shrinking, splitting, or crowning

• Extremely straight structural lines

• Long-term dimensional stability

Steel framing eliminates the natural movement that comes with wood.

🏡 So What’s the Best Choice?

There isn’t a single “best” material — only the right material for your priorities.

Choose PVC if you want:

• Maximum moisture resistance

• Long-term performance

• Modern aesthetics

• Optional barefoot-friendly engineered products

Choose Composite if you want:

• A rich wood-like appearance

• Excellent durability with strong value

• Low maintenance without going fully synthetic

Choose Cedar or Pressure-Treated if you:

• Prefer natural wood

• Are comfortable with ongoing maintenance

• Want a lower upfront investment

And remember — the structure beneath the boards matters just as much as the surface.

Ontario weather is demanding. Your deck should be built to handle it beautifully — from the top board down to the framing underneath — for decades to come.

Planning a new deck in Durham Region?

Icon Decks specializes in custom PVC, composite, and wood decks.

👉 Request an estimate here:

https://robbsrenos.com/contact