Wood vs Composite Decking in Ottawa: Which Is Right for Your Yard?

The material you choose for your deck is the single biggest decision after size. Ottawa's climate — hot, humid summers, wet autumns, and repeated freeze-thaw through winter — punishes the wrong choice fast. Here's how the three most common options compare in the real world.

Pressure-treated lumber

The most affordable upfront and widely available. A pressure-treated deck will last 15–20 years if it is built, stained and ventilated properly. It needs to be stained or sealed every 2–3 years, and boards may check or crack over time. Best for budget-conscious homeowners who don't mind annual maintenance.

Cedar

Cedar is naturally rot-resistant and looks richer than pressure-treated. It weathers to a silver-grey if left untreated, or holds its warm colour with an annual oil-based stain. In Ottawa, cedar performs well when raised off the ground and allowed to drain. It costs more than pressure-treated but less than composite.

Composite and PVC

Composite (Trex, TimberTech, Fiberon) and PVC decking cost the most upfront but require almost no maintenance beyond washing. They won't rot, split or warp, and the better brands come with 25–50 year warranties. The trade-off is heat retention on south-facing decks in July and a higher initial price.

Which one should you choose?

• Choose pressure-treated if you want the lowest first cost and are willing to maintain it.
• Choose cedar if you want natural beauty and are okay with staining every year or two.
• Choose composite or PVC if you want the lowest long-term maintenance and plan to stay in the home for 10+ years.

We source materials from trusted Ontario suppliers and build every frame to code so whatever surface you choose has a solid foundation underneath.