What's the price difference between pressure-treated lumber and cedar for a deck in Vancouver?

Pressure-treated lumber costs significantly less than cedar for deck construction in Metro Vancouver — typically $30-$55 per square foot installed compared to $45-$85 per square foot for cedar. For a standard 300 square foot deck, you're looking at $9,000-$16,500 for pressure-treated versus $13,500-$25,500 for cedar — a potential savings of $4,500-$9,000.

The material cost difference is substantial when you break it down. Pressure-treated decking boards run approximately $3-$6 per square foot for materials alone, while cedar decking ranges from $8-$18 per square foot depending on grade. Clear or tight-knot cedar commands premium pricing, while standard grade cedar with knots falls on the lower end. The labour costs are similar for both materials since installation techniques are nearly identical.

However, the upfront savings with pressure-treated lumber come with important trade-offs in Metro Vancouver's marine climate. Cedar naturally resists moisture, rot, and insects due to its high tannin content — a significant advantage in our region that receives over 1,200mm of annual rainfall. Pressure-treated lumber relies on chemical preservatives (ACQ — alkaline copper quaternary) for protection, but it's more prone to checking, warping, and twisting as it dries, especially during the first year after installation.

Both materials require annual maintenance in Vancouver's wet climate, but cedar accepts stain more readily and maintains a more refined appearance over time. Pressure-treated lumber must be stained or painted for weather protection and aesthetics — left untreated, it weathers to an unattractive grey-green colour. Cedar can weather naturally to an elegant silver-grey patina, though most homeowners prefer to maintain the warm wood tones with regular staining.

For structural framing (posts, beams, joists), pressure-treated lumber is the standard choice regardless of your decking material selection. Even cedar deck projects typically use PT framing because it's more cost-effective and the framing isn't visible once construction is complete. The aesthetic choice between PT and cedar primarily applies to the visible decking surface and railings.

Important fastener consideration: Both materials require ACQ-compatible hardware in Vancouver's climate — stainless steel or hot-dipped galvanized screws and connectors. Standard zinc-plated fasteners will corrode rapidly, especially with pressure-treated lumber. This adds $200-$500 to material costs but is essential for long-term structural integrity.

If budget is your primary concern, pressure-treated lumber delivers solid performance at the lowest cost. However, if you plan to use your deck extensively and want the most attractive natural wood option that performs well in Metro Vancouver's wet climate, cedar justifies the additional investment through superior appearance, workability, and natural weather resistance.

Need help finding a deck builder to discuss material options for your specific project? Vancouver Deck Contractors can match you with experienced professionals who understand how different materials perform in our unique marine climate.

---

Find a Deck Building Contractor

Vancouver Deck Contractors connects you with experienced contractors through the https://vancouverconstructionnetwork.com:

• Heilman Renovations ✓
• Adept Projects Inc ✓
• Vancouver Closets®︎ Ltd. ✓