The 75mm x 75mm Fencefix Post Extender Holder (FPX) is a heavy-duty, specialist metal connector designed to safely increase the height of existing 75mm x 75mm (3" x 3") timber fence posts. This component provides an efficient solution when you want to add decorative trellis panels, extend your boundary height for extra privacy, or upgrade an existing fence line without having to dig out and replace the original structural posts.
 
Manufactured from high-strength carbon steel with a durable, weather-resistant powder-coated finish (typically brown or red oxide), this single-piece welded box section is built to withstand outdoor exposure and resist rust.
 
Key Features and Benefits
QuickFit Grip Design: Features internal locking tabs or gripping fins that bite firmly into the timber of both the existing post and the new extension piece, creating a vice-like mechanical hold.
No Full Excavation Needed: Allows you to raise a fence height by up to 1 meter quickly, saving significant time and labor compared to installing a brand-new post system.
Seamless Integration: Designed to securely bridge an old post and a new timber top section, providing a stable backbone for lightweight screening or trellis additions.
Weather-Resistant Finish: The protective exterior coating shields the steel from moisture and can easily be over-painted to match your chosen fence color or garden aesthetic.
 
Whether you are retrofitting a garden boundary for extra privacy or mounting decorative garden features onto an established fence run, this trade-quality post extender delivers reliable structural strength and long-lasting performance.