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Under Fence Plinths

Finish: Plain

Please note:

Freight is calculated based on your location and order size.We'll contact you with a freight cost within 1 business day before processing payment.

Under-fence plinths are pre-stressed reinforced concrete strips (50mm thick) that close the gap beneath a fence — keeping pets and soil in, weeds and erosion out. In Plain, Timberlook and Composite to suit any fence style. Australian-made, delivered Australia-wide by Retaining Walls Direct.

Written and product-checked by the Retaining Walls Direct team — supplying concrete retaining wall and fencing products across Australia. Last updated: June 2026.

Under fence plinths

An under-fence plinth seals the gap at the base of a fence (or tops a low retaining wall). Pre-stressed reinforcement reduces cracking and adds strength, and the range suits Colorbond steel, timber paling and composite fences — ideal on reactive clay where ground movement opens gaps under the fence line.

Finishes & sizes

Finish Size Suits
Plain 2350 × 200 × 50mm Most fences — budget option
Timberlook 2350 × 200 × 50mm Timber & timber-look fences
Composite 2380 × 200 × 50mm Composite fence systems

Why use an under-fence plinth?

  • Seals the gap under fences — contains pets, soil and mulch.
  • Stops weeds, erosion and washout along the fence line.
  • Pre-stressed reinforced — reduces cracking, adds strength.
  • Concrete — won't rot, warp or attract termites like a timber plinth.

Complete the job

Browse brackets & fixings, concrete sleepers and steel posts for the full retaining wall and fence system.

Buying with confidence

  • Australia-wide delivery with a same-day freight quote.
  • Google-reviewed service and trade support.
  • Returns: no change-of-mind on made-to-order heavy goods; cancellations before dispatch refunded within 5 business days; faulty/incorrect always rectified — see our returns & delivery policy.

Send your postcode and quantities for a freight quote, or contact the team.

Frequently asked questions

What does an under-fence plinth do?
It closes the gap between the bottom of a fence and the ground — keeping pets/soil in and weeds/erosion out.

Which finish should I choose?
Plain (budget), Timberlook (timber fences) or Composite (composite fence systems).

What size are they?
2350×200×50mm (Plain/Timberlook) and 2380×200×50mm (Composite).

Can you deliver to me?
We deliver across most of Australia. Send your postcode and quantities for a freight estimate.

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