25mm James Hardie Plank Starter Strip and Ventilation Profile, 3m

The 25mm Hardie® Starter Ventilation Profile (Product Code: 5300183) is a vital component for a standard Hardie® Plank horizontal overlap installation. It is fixed at the base of the wall to kick out the first board at the correct angle, ensuring the “overlap” look is consistent all the way up the building. This 25mm profile is the standard choice for installations using 25mm timber battens. It provides the necessary kick-out for the first overlap plank while sealing the bottom of the 25mm cavity.

Beyond just setting the angle, this profile is designed to maintain a clear ventilation gap. This allows air to circulate behind the boards, which is essential for keeping the timber battens dry and preventing moisture issues over time.
Made from sturdy aluminium, it provides a much more durable and straighter edge than timber starter strips. It’s a simple addition to your kit list that ensures the job starts level and stays protected from pests getting into the cavity.

Key Features

Designed for 25mm Battens: Perfectly matches the depth of standard 25mm vertical battens.

Kick-out Angle: Sets the first Hardie® Plank at the correct angle for a consistent overlap.

Airflow Management: Features perforated holes to maintain the 25mm ventilation path.

Pest Barrier: Keeps the base of your cladding secure against rodents and birds.

Durable Aluminium: Won’t rust or warp, providing a permanent straight edge.

Please Note: On-screen colours are for illustration purposes only. Due to variations in digital displays, screen settings, and lighting, actual product colours may vary slightly. We recommend ordering a sample or visiting a branch to view physical colour swatches prior to installation.

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