How does the cost of PVC decking compare to composite decking for a Calgary installation?

PVC decking typically costs 15-25% more than composite decking in Calgary, but the performance differences in our extreme climate may justify the premium for many homeowners.

Material costs for PVC decking (Azek, TimberTech Advanced PVC) run $12-20 per square foot compared to $10-18 per square foot for capped composite (Trex, TimberTech, Fiberon). For a typical 300-square-foot deck, you're looking at $3,600-$6,000 for PVC materials versus $3,000-$5,400 for composite materials — a difference of $600-$1,200 in raw materials. Fully installed, expect $45-75 per square foot for PVC versus $40-70 per square foot for composite, meaning that same 300-square-foot deck runs $13,500-$22,500 for PVC compared to $12,000-$21,000 for composite.

The performance difference in Calgary's climate is significant. PVC decking is completely impervious to moisture absorption, making it ideal for our chinook freeze-thaw cycles. While capped composite performs well in Calgary's extreme weather, PVC takes moisture resistance to the next level — it literally cannot absorb water, swell, or support mould growth. This makes PVC particularly valuable around hot tubs, pools, or areas where the deck surface stays wet frequently. PVC also handles Calgary's extreme UV better than most composites, with less colour fading over time, though both materials far outperform wood in UV resistance.

Weight and temperature considerations also favour PVC in Calgary conditions. PVC decking is lighter than composite, which can reduce structural requirements and make installation easier. More importantly for Calgary summers, PVC stays cooler underfoot than composite when exposed to our intense high-altitude UV. Dark composite colours can become uncomfortably hot during July and August, while PVC maintains a more comfortable surface temperature.

Maintenance and longevity are virtually identical between quality PVC and capped composite — both require only periodic cleaning and offer 25-year to lifetime warranties. The key advantage of PVC is dimensional stability. While composite can experience minor thermal expansion and contraction during our extreme temperature swings, PVC remains more dimensionally stable through chinook cycles.

Installation costs are similar for both materials, as they use comparable fastening systems and require similar substructure. However, PVC's lighter weight can sometimes reduce labour time and structural requirements, potentially offsetting some of the material cost premium.

For Calgary homeowners, the choice often comes down to budget versus performance priorities. If you're building near water features, in areas with poor drainage, or want the absolute best moisture resistance for chinook cycling, PVC justifies its premium. For most standard deck applications, quality capped composite offers excellent performance at a lower cost. Both materials dramatically outperform wood in Calgary's climate for long-term value and low maintenance.

Need help finding a deck builder experienced with both PVC and composite installations? Calgary Deck Contractors can match you with contractors from the Calgary Construction Network who can provide detailed quotes comparing both options for your specific project.

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Looking for experienced contractors? The Calgary Construction Network connects homeowners with qualified professionals:

• Jk Stucco
• Canadian Closet
• True North Overhead Doors
• Wise Abatement
• Millennium Fence and Deck