Description
SuperPlinth Composite Retaining Wall Plinth
Achieve a cleaner, more professional retaining wall finish with SuperPlinth, the purpose-designed component used to fill gaps beneath sleepers and create a consistent, finished base. Designed to integrate seamlessly with the SuperSleeper system, SuperPlinth improves both the appearance and performance of your retaining wall.
Manufactured from durable fibre-reinforced polymer (FRP), SuperPlinth is lightweight, easy to handle and built to withstand harsh outdoor conditions without rotting, cracking or deteriorating over time.
Available in two sizes — 2380 x 185 x 40mm and 3160 x 185 x 40mm, allowing you to suit different wall lengths while reducing joins and maintaining a clean, continuous finish.
Key Features & Benefits
Creates a clean, level base — Fills gaps under sleepers to deliver a uniform and professional finish.
Improves wall appearance — Eliminates uneven gaps for a tidy, consistent look across the entire wall.
Lightweight and easy to install — Simple to position and adjust during installation.
Durable composite construction — Made from FRP materials for long-term performance in outdoor environments.
Low maintenance solution — Will not rot, rust or degrade over time.
What It’s Used For
Gap Filling Under Sleepers — Ideal for situations where ground levels vary, helping to close gaps at the base of the wall.
Finishing Retaining Walls — Provides a clean transition between the wall and ground level.
Improving Wall Consistency — Ensures a more uniform and visually appealing result, especially on uneven sites.
Where to Use
Retaining Wall Base Sections — Installed at the bottom of the wall to improve finish and alignment.
Uneven Ground Conditions — Perfect for sites where levels are inconsistent or require adjustment.
Residential & Commercial Landscaping — Suitable for both DIY projects and professional installations.
Practical Information
SuperPlinth is designed to be used as part of the complete SuperSleeper retaining wall system, working alongside sleepers, posts and accessories to achieve a consistent and professional result.
While not always required, SuperPlinth is highly recommended where gaps beneath sleepers need to be closed or where a cleaner finish is desired.
Correct installation helps improve both the visual outcome and overall performance of the retaining wall system.





