The Different Timber Fence Treatments That Manufacturers Use

When buying timber fencing, you will notice that manufacturers and distributors use a variety of names to describe their treatment processes. While the names can differ, the key factors to consider are how well the treatment protects the wood, whether ongoing maintenance is required, and how long the guarantee lasts.

Some treatments offer decades of protection with minimal upkeep, while others require regular staining or painting to maintain their effectiveness. In this blog, we will break down the most common timber fence treatments, what they mean, and how long you can expect them to last. 

Tanalised Timber (Pressure Treated with Tanalith) 

Guarantee Length: Typically 10 to 15 years 

Tanalised timber is a widely recognised term for wood that has been pressure treated with a preservative called Tanalith. This process forces preservatives deep into the wood under vacuum and pressure, offering protection against rot, fungal decay, and insect attack. 

Finish: Often has a greenish tint that fades to a silver-grey over time. 

Maintenance: Usually no additional painting or staining is required, but a UV-protective coating can help maintain its appearance. 

Jakcure® Timber Treatment 

Guarantee Length: 25 years 

Jakcure is the proprietary timber treatment used by Jacksons Fencing. It’s a high-quality pressure treatment that extends the lifespan of fencing up to 25 years, backed by a guarantee. Unlike some treatments, Jakcure penetrates deep into the wood and does not require annual re-treatment. 

Finish: Initially green, gradually fades to a more natural tone. 

Maintenance: No need for staining or painting to maintain protection.

Gold Treatment 

Guarantee Length: Varies, usually 10 to 15 years 

Gold Treatment refers to a pressure treatment process that leaves the timber with a warm golden or brown hue instead of the usual greenish tint. This makes it more visually appealing from the start. 

Finish: Golden brown, but can fade over time. 

Maintenance: Some manufacturers recommend applying a UV-resistant wood stain to maintain the colour. 

Green Finish Pressure Treatment 

Guarantee Length: 10 to 15 years 

This is a broad term for timber treated with preservatives under pressure, giving it a characteristic green tint. The green colour is a byproduct of the chemicals used and will fade over time. 

Finish: Green when new, gradually fades to a weathered grey.  

Maintenance: Typically maintenance-free, but can be stained for aesthetic reasons. 

Dip Treated Timber 

Guarantee Length: Usually 5 to 10 years (requires maintenance) 

Dip treatment is a less intensive method where timber is submerged in a preservative solution for a short time. This provides only surface-level protection, meaning it requires regular maintenance to prevent rot and decay. 

Finish: Often an orangey-brown colour due to the treatment. 

Maintenance: Must be re-treated with a fence stain or preservative annually to maintain protection. 

Vacuum Pressure Treated Timber 

Guarantee Length: 15 to 25 years, depending on the manufacturer 

This treatment method uses a vacuum to remove air from the timber before introducing preservative chemicals under high pressure. The deep penetration of preservatives makes it highly durable. 

Finish: Typically green or brown, depending on the preservative used. 

Maintenance: Generally maintenance-free, but optional staining can be applied for aesthetic reasons. 

Autoclave Treated Timber 

Guarantee Length: 15 to 20years 

Autoclave treatment is another term for pressure treatment, where wood is placed in a sealed chamber (autoclave) and exposed to high-pressure preservatives. This ensures deep penetration and long-lasting protection. 

Finish: Often green or brown, similar to other pressure-treated woods. 

Maintenance: Low maintenance, though a protective stain can help preserve colour. 

Choosing the Right Treatment for Your Fence 

When selecting timber fencing, it’s important to consider not just the name of the treatment, but also: 

The length of the guarantee: Longer guarantees often indicate better protection. 

Whether ongoing maintenance is required: Some treatments need regular staining, while others are maintenance-free. 

The initial appearance and how it will weather: Some treatments fade over time, requiring additional coatings to maintain their look. 

Best Choice for Low Maintenance & Longevity: 

If you want fencing that lasts with minimal upkeep, Jakcure® with a 25 year guarantee or vacuum pressure-treated options with a 15+ year guarantee are the best choices. 

Best Choice for Budget Fencing:

Dip-treated timber is usually cheaper upfront, but it requires annual maintenance to maintain its protection. 

Brush-On Treatment During Installation

When installing a fence, reputable manufacturers that offer strong, well-backed guarantees ensure that all cut ends are properly treated to maintain durability and longevity. When purchasing or installing a fence, always check that cut ends are treated with a brush-on treatment recommended by the manufacturer to protect against moisture, rot, and decay. This simple step helps preserve the integrity of your fence and ensures it remains in top condition for years to come.

Timber treatment names can be confusing, but what really matters is the level of protection they offer and how much maintenance they require. Look for how long the guarantees are for each timber fence, garden gate or driveway gate.

An example of an installer brushing treatment on cut fencing boards