FAQ

What types of treatment are available?

In the Australian timber market, there are two common types of treatment available for preserving timber: CCA and LOSP.

CCA (Chromated Copper Arsenate): CCA-treated timber is widely used and offers excellent protection against decay, insects, and fungal growth. It involves treating the wood with copper, chromium, and arsenic compounds, which penetrate deep into the timber fibers. CCA-treated timber is suitable for outdoor applications, including decking, fencing, and structural components. However, due to its arsenic content, it's essential to follow proper handling and safety guidelines.

LOSP (Light Organic Solvent Preservative): LOSP-treated timber is another preservation method where a light organic solvent is used to carry the preservative chemicals into the wood. This treatment provides protection against decay and insects and is commonly used for indoor and above-ground applications. LOSP-treated timber is generally considered less toxic than CCA-treated timber, making it a preferred option for interior projects.

Before selecting a treatment, consider your intended use and environmental conditions to ensure you choose the most suitable treated timber for your project.

What treatment level do I need to use?

When selecting the appropriate treatment level for your timber, it's essential to consider the H levels, which are commonly used in Australia to indicate the hazard level of the treatment.

H1: H1 treatment is suitable for indoor, above-ground use where the timber is protected from the weather and not exposed to the ground. It provides protection against termites and wood borers.

H2: H2 treatment is designed for above-ground use, such as interior framing and trusses. It protects against termites but is not suitable for ground contact.

H3: H3 treatment is recommended for outdoor, above-ground use. It provides protection against both termites and decay, making it suitable for decking, fencing, and other exterior applications.

Is CCA safe to handle?

Cutting and Sanding: When cutting or sanding CCA-treated timber, take precautions to minimize exposure to the sawdust or wood particles. Use appropriate personal protective equipment (PPE), such as a dust mask, safety goggles, and gloves. Work in a well-ventilated area or outdoors to reduce inhalation of airborne particles.

Disposal: Avoid burning CCA-treated timber as it releases arsenic and other harmful compounds into the air. Instead, dispose of any waste in accordance with local regulations for hazardous materials.

Avoiding Contact with Skin: While handling CCA-treated timber use gloves, and avoid direct and prolonged skin contact. If contact occurs, wash thoroughly with soap and water.

What is composite decking?

Composite decking is a type of timber decking used for building purposes. Unlike traditional wood decking, composite decking is made from a blend of recycled wood fibers and plastic materials. This combination results in a durable, low-maintenance, and eco-friendly decking option. Composite decking offers several advantages over regular timber decking, including resistance to rot, insects, and fading. It also requires less maintenance, as it doesn't need staining or sealing like traditional wood. Additionally, composite decking comes in various colors and styles to suit different aesthetic preferences. It has become a popular choice for homeowners and builders looking for a long-lasting and attractive decking solution.