Coastal Custom Products

Thermo-Treated Decking: A Sustainable Solution for Outdoor Spaces

At Coastal Custom Products, we pride ourselves on providing eco-friendly and sustainable building materials for various construction needs. One of our flagship products is thermo-treated decking, which has gained immense popularity for its durability, aesthetic appeal, and environmental benefits. As the demand for sustainable building materials continues to rise, more homeowners and businesses are turning to thermo-treated wood for their outdoor spaces. This innovative product not only meets but often exceeds the expectations of those looking to create beautiful and long-lasting decks, patios, and other outdoor areas.

In this blog post, we will explore the many facets of thermo-treated decking, including its production process, benefits, and applications. We will also compare it with other popular decking materials to highlight why it stands out as a superior choice. Additionally, we will provide tips on choosing and maintaining thermo-treated decking for your projects. By the end of this post, you’ll have a comprehensive understanding of why thermo-treated decking is a sustainable solution for outdoor spaces and how Coastal Custom Products can help you achieve your sustainability goals.

What is Thermo-Treated Wood?

Thermo-treated wood, also known as thermally modified wood, undergoes a special heat treatment process that enhances its properties. This process involves heating the wood to high temperatures, typically between 180°C and 230°C, in a controlled environment devoid of oxygen. The absence of oxygen prevents the wood from burning while allowing it to undergo significant chemical and physical changes.

During thermal modification, the wood’s moisture content is drastically reduced, and its cellular structure is altered. This results in several beneficial properties, including increased durability, stability, and resistance to decay and insects. Unlike traditional wood treatment methods that rely on chemical preservatives, thermo-treated wood is entirely natural, making it an environmentally friendly option for outdoor applications. Its enhanced resistance to environmental factors makes it particularly suitable for use in decking, where longevity and low maintenance are crucial.

Benefits of Thermo-Treated Decking

Environmental Benefits

Thermo-treated decking stands out for its sustainable nature. The wood used for thermal modification is often sourced from sustainably managed forests, ensuring minimal environmental impact. The process itself does not involve harmful chemicals, resulting in a lower carbon footprint compared to traditional wood treatment methods. By choosing thermo-treated wood, you contribute to reducing the demand for chemically treated wood and help promote healthier ecosystems.

Performance Benefits

One of the primary advantages of thermo-treated decking is its enhanced durability and lifespan. The heat treatment process significantly increases the wood's resistance to decay, mold, and insect infestation, which are common issues with untreated wood. Additionally, thermo-treated wood boasts improved dimensional stability, meaning it is less likely to warp, crack, or shrink over time. This stability, combined with its resistance to weathering and UV exposure, ensures that thermo-treated decking maintains its structural integrity and appearance for many years with minimal maintenance.

Aesthetic Benefits

Thermo-treated wood offers a natural and beautiful appearance that enhances any outdoor space. The heat treatment process often darkens the wood, giving it a rich, warm color that resembles tropical hardwoods. This aesthetic appeal can be further enhanced with various finishes and stains, allowing for a wide range of design possibilities. Whether you prefer a rustic look or a sleek, modern finish, thermo-treated decking can be customized to match your vision.

Applications of Thermo-Treated Decking

Thermo-treated decking is versatile and suitable for a wide range of outdoor applications. It is commonly used in residential decks and patios, providing a durable and attractive surface for outdoor living spaces. Homeowners appreciate its longevity and low maintenance requirements, making it a cost-effective choice over time.

In commercial settings, thermo-treated decking is an excellent option for outdoor areas such as restaurant patios, hotel terraces, and park walkways. Its resistance to heavy foot traffic and environmental elements ensures it performs well in high-use areas. Additionally, public spaces like boardwalks and piers benefit from the durability and slip-resistant properties of thermo-treated wood.

Comparison with Other Decking Materials

Traditional Wood Decking

Compared to traditional wood decking, thermo-treated wood offers superior longevity and reduced maintenance. Traditional wood often requires regular treatments and sealing to prevent decay and insect damage, whereas thermo-treated wood's inherent properties eliminate the need for such interventions. Additionally, the environmental impact of thermo-treated wood is lower due to its chemical-free treatment process.

Composite Decking​

While composite decking is known for its durability and low maintenance, it can be more expensive than thermo-treated wood. Composite materials often lack the natural aesthetic appeal of wood, making thermo-treated wood a preferred choice for those seeking a natural look. Furthermore, composite decking can have a higher environmental footprint due to the production processes involved, whereas thermo-treated wood remains a more sustainable option.

Installation and Maintenance Tips

For best results, follow recommended installation practices, such as proper spacing for expansion and contraction and using stainless steel fasteners to prevent corrosion. Maintenance is straightforward: periodic cleaning with mild soap and water will keep your deck looking pristine. Applying a UV-protective finish can enhance its longevity and appearance, though this step is optional due to the wood’s inherent UV resistance.

Coastal Custom Products and Our Commitment to Sustainability

At Coastal Custom Products, we are dedicated to promoting sustainability through our range of eco-friendly building materials. Our mission is to provide high-quality, sustainable options that do not compromise on performance or aesthetics. We source our wood from manufacturers that practice responsibly managed forests and employ processes that minimize environmental impact.

In addition to thermo-treated decking, we offer a variety of other eco-friendly products designed to meet the needs of environmentally conscious consumers. From bamboo flooring to recycled composite materials, our product lineup reflects our commitment to a greener future.


Thermo-treated decking presents a compelling solution for those seeking sustainable, durable, and aesthetically pleasing options for their outdoor spaces. Its numerous benefits, from environmental friendliness to superior performance, make it a standout choice in the market. We encourage you to consider thermo-treated decking for your next outdoor project and experience the difference it can make.

For more information and to explore our range of sustainable building materials, contact Coastal Custom Products today. Let us help you create beautiful and eco-friendly outdoor spaces that you can enjoy for years to come.

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