Channel Post Extension 300mm Beige/Riversand

This product is suitable for Slimline Cpost.

Channel post extensions are designed to extend your existing Colorbond fence by sliding over the existing channel post, or your new Colorbond fence by 300mm or 600mm, and are commonly paired with Lattice, LouvreLat, Slatlat, or Colorbond sheets.

Colorbond Channel Post Extensions, Sydney’s Most Trusted Fencing Upgrade Solution for Colorbond!

High-Quality Fence Extensions from The Fencing Warehouse in Sydney!

Enhance the height, privacy, and security of your existing fence with these Slimline Colorbond Channel Post Extensions from The Fencing Warehouse, Sydney’s most reliable supplier of premium fencing products. Designed to integrate seamlessly with your current Colorbond fence, these extensions provide a strong, long-lasting solution for homeowners and installers wanting to increase fence height without replacing full posts.

• Premium Colorbond Channel Post Extensions 

Our channel post extensions are manufactured using Australian-made Colorbond steel, known for its superior durability, corrosion resistance, and clean architectural finish. Whether you're upgrading to meet new boundary height requirements or simply adding privacy, these extensions deliver a secure and professional result every time.

Perfect for Sydney’s climate, they resist coastal air, heat, and harsh weather—ensuring your fence stays strong and looking great for years.

• Key Features & Benefits

✔ Perfect Fit for Existing Colorbond Fences

Designed to slide directly onto standard Slimline Colorbond posts, offering a safe, stable connection for added fence sheets, slats, louvres or lattice!

✔ Durable & Weather-Resistant

Crafted from premium Colorbond steel to withstand the diverse conditions across Greater Sydney. rain, coastal moisture, and strong summer heat.

✔ Full Range of Colorbond Colours

Matches the Colorbond fencing profiles and colours sold at The Fencing Warehouse, ensuring a consistent and professional appearance.

✔ Easy Installation

A fast and efficient way to boost fence height with minimal tools and no need to dig out or replace existing posts.

✔ Cost-Effective Privacy Solution

Increase height, reduce overlooking, and improve security without major structural work.

Ideal For:

• Increasing backyard and pool privacy

• Meeting NSW fencing height requirements

• Reducing noise and visibility from neighbouring properties

• Fence upgrades in residential, commercial, or strata settings

Why Buy From The Fencing Warehouse?

As Sydney’s most trusted fencing suppliers, The Fencing Warehouse provides:

• Competitive pricing on all Colorbond fencing components

• Reliable stock levels for quick pickup or shipping

• Expert advice for DIY customers, builders, and fencing contractors

• Quality products built to meet Australian standards

We make it simple to get the fencing supplies you need locally, quickly, and at the right price.

Please Note: 

Slimline extensions are compatible only with Slimline channel posts. The Fencing Warehouse strongly recommends verifying that you are selecting the correct design for your existing fence. If you are purchasing channel posts with this order, please ensure that the posts and extensions are the same style. To shop our range of Slimline Cpost, click Here and select "Slimline".

Check out our specs sheet for exact product dimensions.