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Lonsdale Concrete Under-Fence Plinth 50mm | Retaining Walls Direct

Lonsdale Concrete Under-Fence Plinth — 50mm

Concrete under-fence plinths are the solution to one of Australia's most common fencing problems — fence palings and rails rotting at ground level on reactive clay sites. By elevating the fence base off the ground on a concrete plinth, you eliminate direct soil contact, prevent moisture wicking into timber, and stop the ground movement that reactive clay causes from cracking and lifting fence bases over time.

With 40+ years of hands-on experience building retaining walls and associated structures across Australia, we supply concrete plinths to homeowners and builders across Sydney, Melbourne, Brisbane, Perth, Adelaide, and the Gold Coast. The Lonsdale finish matches our Lonsdale concrete sleeper range for a coordinated look.

Specifications

  • Thickness: 50mm
  • Finish: Lonsdale
  • Application: Under Colorbond steel fencing and timber paling fences on reactive clay sites

Why Use Concrete Plinths?

  • Eliminates fence rot at ground level — the most common cause of premature fence failure in Australia
  • Prevents reactive clay ground movement from cracking and lifting fence bases
  • Particularly important on reactive clay sites in Western Sydney, Melbourne's east, Brisbane's west, Adelaide's plains, and Perth's eastern suburbs
  • Extends fence lifespan significantly, reducing replacement costs

Delivery

Delivered across Sydney, Melbourne, Brisbane, Perth, Adelaide, Canberra, Gold Coast, and regional Australia. Get a free quote.

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