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Pressure Treated Wood in Canada 2025: Top 5 Durable Picks and Expert Guide (MicroPro Sienna, Goodfellow Terra, Windsor ACQ, Home Depot Select SPF, RONA ECO Choice)

Published on Sunday, August 24, 2025

Pressure treated wood is lumber that has been infused with preservatives under pressure to enhance its durability, resistance to moisture, insects, and decay, making it ideal for outdoor and ground-contact applications such as decks, fences, and structural support. In Canada, where regional climates range from wet coastal zones to freeze-thaw prairies, homeowners and contractors prioritize treated lumber that balances long service life, corrosion compatibility with fasteners, visual appearance, and environmental performance. Consumers choose pressure treated wood for its proven ability to protect outdoor projects against rot and pests, predictable pricing and widespread availability through national and regional suppliers, and options that match aesthetic preferences—from natural-looking, color-stained treatments to more economical raw green lumber. Practical considerations driving purchase decisions include local building code requirements, intended use (above ground vs ground contact), salt-air tolerance for coastal projects, and the need for certified or lower-impact preservative systems.

Top Picks Summary

1. Best Premium Colored Decking

2. Best Canadian Mid‑Range Lumber

3. Best ACQ Standard from Retailer

4. Best Value SPF Structural Lumber

5. Best Eco-Conscious Treatment Option

Top Picks Summary

  1. MicroPro Sienna Treated Wood
  2. Goodfellow Terra Pressure Treated Lumber
  3. Windsor Plywood ACQ Treated Lumber
  4. Home Depot Select Premium SPF Pressure Treated
  5. RONA ECO Choice Pressure Treated Wood
1
BEST PREMIUM COLORED DECKING

MicroPro Sienna Treated Wood

MicroPro Sienna Treated Wood

MicroPro Sienna is positioned as a premium, color-stained pressure treated wood that blends micronized copper-based preservation with a factory-applied sienna finish for long-lasting decay and insect resistance while reducing visible weathering. Compared with the other products on this list it commands a higher price but delivers technical advantages—improved penetration, lower apparent surface corrosion risk to fasteners than older ACQ formulations and better initial aesthetics—making it a top choice where appearance and service life justify the premium.

4.4
★★★★☆
  • Warm sienna

  • Micronized copper

  • Warm sienna

  • Micronized copper

Review Summary

88%

"Users praise MicroPro Sienna for its attractive brown tone and reliable rot and insect resistance, with good dimensional stability; some note it costs more than standard treated lumber."

  • Low-odor whisper

  • Micronized copper azole (MicroPro) treatment provides long-lasting rot and insect resistance

  • Low-odor whisper

  • Micronized copper azole (MicroPro) treatment provides long-lasting rot and insect resistance

Aesthetic & Personal Appeal

Eco-Friendly Living

Increased Safety & Security

MicroPro Sienna is positioned as a premium, color-stained pressure treated wood that blends micronized copper-based preservation with a factory-applied sienna finish for long-lasting decay and insect resistance while reducing visible weathering. Compared with the other products on this list it commands a higher price but delivers technical advantages—improved penetration, lower apparent surface corrosion risk to fasteners than older ACQ formulations and better initial aesthetics—making it a top choice where appearance and service life justify the premium.

  • Warm sienna

  • Micronized copper

  • Low-odor whisper

  • Micronized copper azole (MicroPro) treatment provides long-lasting rot and insect resistance

  • Factory-applied Sienna color reduces immediate need for staining and weathers to a natural tone

  • Warm sienna

  • Micronized copper

  • Low-odor whisper

  • Micronized copper azole (MicroPro) treatment provides long-lasting rot and insect resistance

  • Factory-applied Sienna color reduces immediate need for staining and weathers to a natural tone

Order Now

$350-700 CAD

2
BEST CANADIAN MID‑RANGE LUMBER

Goodfellow Terra Pressure Treated Lumber

Goodfellow Terra Pressure Treated Lumber
🏠 Local Product

Goodfellow Terra is a value-oriented, earth-toned pressure treated lumber line aimed at residential decks and fencing, offering dependable preservative performance at a competitive price point. Against the other entries here it stands out for affordability and regional availability in Canada, providing a cost-efficient option for larger projects where MicroPro-level aesthetics or specialty certifications are not required.

4.1
★★★★☆
  • Earth-tone finish

  • Outdoor durability

  • Earth-tone finish

  • Outdoor durability

Review Summary

82%

"Goodfellow Terra is seen as a good-value, durable option for local projects, though buyers occasionally report batch-to-batch color variation and some warping on longer lengths."

  • Pet-safe nod

  • Pressure-treated for exterior durability, suitable for decks, fences and landscaping projects

  • Pet-safe nod

  • Pressure-treated for exterior durability, suitable for decks, fences and landscaping projects

Aesthetic & Personal Appeal

Eco-Friendly Living

Reduced Stress & Anxiety

Goodfellow Terra is a value-oriented, earth-toned pressure treated lumber line aimed at residential decks and fencing, offering dependable preservative performance at a competitive price point. Against the other entries here it stands out for affordability and regional availability in Canada, providing a cost-efficient option for larger projects where MicroPro-level aesthetics or specialty certifications are not required.

  • Earth-tone finish

  • Outdoor durability

  • Pet-safe nod

  • Pressure-treated for exterior durability, suitable for decks, fences and landscaping projects

  • Offered in common construction sizes with consistent quality from a Canadian supplier

  • Earth-tone finish

  • Outdoor durability

  • Pet-safe nod

  • Pressure-treated for exterior durability, suitable for decks, fences and landscaping projects

  • Offered in common construction sizes with consistent quality from a Canadian supplier

Order Now

$250-500 CAD

3
BEST ACQ STANDARD FROM RETAILER

Windsor Plywood ACQ Treated Lumber

Windsor Plywood ACQ Treated Lumber
🏠 Local Product

Windsor Plywood's ACQ treated lumber is a widely stocked, construction-grade option using the proven alkaline copper quaternary formula that delivers strong decay and insect protection for structural and exterior applications. Technically it is a straightforward, cost-effective choice compared with micronized treatments—it is generally cheaper than premium color-treated lines but requires careful fastener selection (galvanized or stainless) due to higher copper-related corrosion potential.

4.2
★★★★☆
  • ACQ heavy-duty

  • Fastener-friendly

  • ACQ heavy-duty

  • Fastener-friendly

Review Summary

84%

"Windsor Plywood ACQ-treated lumber is generally praised for consistent preservative treatment and availability in common sizes, with a few reviews mentioning a rougher surface that may need planing."

  • Long-lasting rot

  • Treated with ACQ preservative that is widely accepted for structural and ground-contact use

  • Long-lasting rot

  • Treated with ACQ preservative that is widely accepted for structural and ground-contact use

Increased Safety & Security

Optimized Work Efficiency

Time-Saving Convenience

Windsor Plywood's ACQ treated lumber is a widely stocked, construction-grade option using the proven alkaline copper quaternary formula that delivers strong decay and insect protection for structural and exterior applications. Technically it is a straightforward, cost-effective choice compared with micronized treatments—it is generally cheaper than premium color-treated lines but requires careful fastener selection (galvanized or stainless) due to higher copper-related corrosion potential.

  • ACQ heavy-duty

  • Fastener-friendly

  • Long-lasting rot

  • Treated with ACQ preservative that is widely accepted for structural and ground-contact use

  • Available through Windsor Plywood in multiple grades and lengths for flexibility on jobsites

  • ACQ heavy-duty

  • Fastener-friendly

  • Long-lasting rot

  • Treated with ACQ preservative that is widely accepted for structural and ground-contact use

  • Available through Windsor Plywood in multiple grades and lengths for flexibility on jobsites

Order Now

$200-450 CAD

4
BEST VALUE SPF STRUCTURAL LUMBER

Home Depot Select Premium SPF Pressure Treated

Home Depot Select Premium SPF Pressure Treated

Home Depot Select Premium SPF treated lumber offers nationwide availability, consistent sizing and quality control backed by a major retailer, making it a convenient and competitively priced pick for DIYers and contractors. Versus the specialty or regional brands in this list it scores on supply-chain reliability and predictable pricing, though it may not offer the same factory-applied color or niche eco-credentials as premium labeled or eco-focused products.

4
★★★★☆
  • Consistent grading

  • Budget-friendly strength

  • Consistent grading

  • Budget-friendly strength

Review Summary

80%

"Home Depot Select Premium SPF is widely used for its affordability and availability; reviewers commonly note variability in straightness and occasional knots but say it performs well for decks and framing when selected carefully."

  • Ready-to-build

  • Made from SPF (spruce-pine-fir) and pressure-treated for framing, joists and general outdoor structure

  • Ready-to-build

  • Made from SPF (spruce-pine-fir) and pressure-treated for framing, joists and general outdoor structure

Optimized Work Efficiency

Increased Safety & Security

Home Depot Select Premium SPF treated lumber offers nationwide availability, consistent sizing and quality control backed by a major retailer, making it a convenient and competitively priced pick for DIYers and contractors. Versus the specialty or regional brands in this list it scores on supply-chain reliability and predictable pricing, though it may not offer the same factory-applied color or niche eco-credentials as premium labeled or eco-focused products.

  • Consistent grading

  • Budget-friendly strength

  • Ready-to-build

  • Made from SPF (spruce-pine-fir) and pressure-treated for framing, joists and general outdoor structure

  • Competitive pricing and wide Home Depot distribution make it accessible for DIY and small projects

  • Consistent grading

  • Budget-friendly strength

  • Ready-to-build

  • Made from SPF (spruce-pine-fir) and pressure-treated for framing, joists and general outdoor structure

  • Competitive pricing and wide Home Depot distribution make it accessible for DIY and small projects

Order Now

$180-360 CAD

5
BEST ECO-CONSCIOUS TREATMENT OPTION

RONA ECO Choice Pressure Treated Wood

RONA ECO Choice Pressure Treated Wood
🏠 Local Product

RONA ECO Choice is marketed as an environmentally conscious pressure treated wood line that balances preservative performance with reduced environmental impact and compliance with local Canadian regulations. Compared to the other products it aims to occupy the middle ground—more eco-focused than generic ACQ stock and typically more affordable than premium color-treated lines—offering a sensible compromise for buyers prioritizing lower environmental footprint without a large price premium.

3.9
★★★☆☆
  • Low-tox promise

  • Eco-certified green

  • Low-tox promise

  • Eco-certified green

Review Summary

78%

"RONA ECO Choice is appreciated for its eco-focused preservative and reasonable longevity, but some customers report higher price and uneven quality control compared with mainstream treated lumber."

  • Garden-friendly smile

  • Marketed as an eco-focused pressure-treated option with reduced heavy-metal formulations

  • Garden-friendly smile

  • Marketed as an eco-focused pressure-treated option with reduced heavy-metal formulations

Eco-Friendly Living

Reduced Stress & Anxiety

Aesthetic & Personal Appeal

RONA ECO Choice is marketed as an environmentally conscious pressure treated wood line that balances preservative performance with reduced environmental impact and compliance with local Canadian regulations. Compared to the other products it aims to occupy the middle ground—more eco-focused than generic ACQ stock and typically more affordable than premium color-treated lines—offering a sensible compromise for buyers prioritizing lower environmental footprint without a large price premium.

  • Low-tox promise

  • Eco-certified green

  • Garden-friendly smile

  • Marketed as an eco-focused pressure-treated option with reduced heavy-metal formulations

  • Intended for decking and landscaping where lower environmental impact is a priority

  • Low-tox promise

  • Eco-certified green

  • Garden-friendly smile

  • Marketed as an eco-focused pressure-treated option with reduced heavy-metal formulations

  • Intended for decking and landscaping where lower environmental impact is a priority

Order Now

$220-420 CAD

Research and Science Behind Pressure Treated Wood

Scientific research and independent testing support the core benefits of pressure treated wood: preservative infusion under pressure dramatically slows wood decay and insect damage compared with untreated lumber, and modern preservative systems offer improved performance and lower leaching compared to older formulations. Canadian and North American research organizations, including FPInnovations and the U.S. Forest Products Laboratory, have published data showing increased service life for treated wood in a variety of exposure conditions when properly specified and installed. Studies also emphasize the importance of using compatible fasteners and following best-practice installation and maintenance to realize the expected longevity and safety benefits.

Treated wood can substantially extend service life: tests show properly treated and installed lumber lasts many times longer than untreated wood in similar exposure conditions.

Modern copper-based preservatives (micronized or soluble formulations) are effective against decay fungi and wood-boring insects; micronized formulations can reduce preservative leaching in some environments.

Performance varies by exposure class: ground-contact and freshwater-exposed applications require higher retention levels than above-ground use.

Compatibility with hardware matters: use hot-dipped galvanized or stainless fasteners where manufacturers recommend to prevent accelerated corrosion.

Maintenance and design details (good drainage, ventilation, end-grain sealing, routine cleaning and sealing or staining) significantly influence real-world durability.

Across Canada the best pressure treated lumber for your project depends on exposure, appearance preferences, and budget. The five main products highlighted here each bring strengths: MicroPro Sienna Treated Wood offers a strong blend of durability and improved aesthetics, Goodfellow Terra Pressure Treated Lumber gives solid regional availability and reliable protection, Windsor Plywood ACQ Treated Lumber is a familiar ACQ option for builders, Home Depot Select Premium SPF Pressure Treated provides a convenient, broadly stocked choice for many DIYers, and RONA ECO Choice Pressure Treated Wood focuses on eco-conscious positioning and local availability. For most Canadian outdoor projects seeking a balance of performance and finish, MicroPro Sienna Treated Wood is the best overall choice on this list. We hope you found what you were looking for — if you want to narrow by location, exposure type, or price, use the search to refine or expand your results.

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