3Peaks – Thermal Red Oak Hardwood Decking
Thermal Red Oak is a durable hardwood decking option made using a thermal modification process that uses only heat and steam—no chemicals. The result is a stable, rot- and insect-resistant board with a deep, rich brown appearance. Made in Canada from domestic Canadian wood.
Core Advantages
- Strength & stability: Thermal modification reduces moisture content to help reduce expansion/contraction, resulting in less warping and cupping.
- Rot & insect resistance: Improved resistance to mold, insects, and decay as sugars and nutrients are reduced during thermal treatment.
- Aesthetics & comfort: Deep, rich brown colour throughout that can be maintained with oil or allowed to patina naturally.
- Eco-friendly process: Chemical-free modification using only heat and steam.
- Workability: Lighter-weight boards can be easier to handle compared to very dense tropical species.
Performance Highlights (Thermal Red Oak)
| Property | Thermal Red Oak | Units / Notes |
|---|---|---|
| Density | 600–700 | kg/m³ |
| Modulus of Rupture (MOR) | 61.8 | MPa |
| Modulus of Elasticity (MOE) | 12–13 | GPa |
| Compressive Strength | 42–61 | MPa |
| Static Hardness (Janka) | 1200–1360 | lbf |
Weather, Water & Pest Resistance
- Weather resistant and suitable for outdoor exposure.
- Water resistant characteristics enhanced through the thermal modification process.
- Pest resistant due to reduced sugars/nutrients after treatment.
- Durable hardwood option designed for long-term deck performance.
Available Profiles, Sizes & Lengths
- Available lengths: 8′, 10′, 12′, 14′, 16′, 18′, 20′
- Available profiles: Grooved-Edge, Square-Edge
- Grooved-Edge & Square-Edge size: 5/4 × 6
| Profile | Profile Image | Size | Available Lengths |
|---|---|---|---|
| Grooved-Edge | 5/4 × 6 | 8′, 10′, 12′, 14′, 16′, 18′, 20′ | |
| Square-Edge | 5/4 × 6 | 8′, 10′, 12′, 14′, 16′, 18′, 20′ |
Maintenance & Colour Weathering
Choose the natural Thermal Red Oak appearance or the pre-oiled option. The deck can be maintained with oil to help preserve its rich brown tone, or it can be left to patina naturally over time.
Fastening System
Use fastening methods appropriate for hardwood decking and follow local building codes and installer best practices. Confirm fastener compatibility for thermally modified hardwood and your site conditions (coastal, high moisture, etc.) before installation.
- Grooved-edge boards: typically paired with compatible hidden fastener systems (confirm clip compatibility).
- Square-edge boards: typically used where face-fastening is preferred (confirm screw type and corrosion rating).
Origin
Made in Canada from domestic Canadian wood.
