Catalogue
Composite Plinths
Composite plinths sit under a fence to close the gap to the ground and keep soil off the panels. They are far lighter than concrete, will not rot, and are designed to match our composite sleepers. Browse the range below, check stock and colours, and add them to your cart with your posts.
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Shop Composite Plinths by type
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Material not listed?
Tell us what the job needs.
Send a drawing or product schedule with sizes and quantities so the team can review your list.
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Prices include GST. Freight calculated separately.
Not sure which Composite Plinths you need?
Text us your wall height and length, or a photo of your site, and we'll point you to the right product.
Replies 7am to 6pm
Easy to install
Light to carry and lift into place between each post.
No rot
Composite does not rot or attract termites.
Good looks
Colours and a style to suit modern outdoor spaces.
One delivery
Sent with your composite sleepers and posts.
Choose the right product
Composite or concrete plinths?
Both elevate the fence off the soil and hold back a small change in ground level. Composite is the easier one to handle. Concrete is the heavier, more common choice.
Retaining wall calculator
| Consider | Composite plinths | Concrete plinths |
|---|---|---|
| Weight | Light | Heavy |
| Best with | Composite sleepers and posts | Concrete sleepers and steel posts |
| Upkeep | A wash now and then over the lifetime of the fence | The same |
Check with our team before stacking plinths or using them to hold back soil. The limits come from the supplier's engineering.
Complete the job
Everything else the job needs, in the same order.
Composite SleepersFRP sleepers that lift by hand and will not rot.Shop Composite Sleepers →
Composite PostsMatching composite posts for composite sleeper walls.Shop Composite Posts →
Under Fence PlinthsConcrete plinths that close the gap under your fence.Shop Under Fence Plinths →
Composite Sleepers & PostsLightweight FRP sleepers, posts and plinths.Shop Composite Sleepers & Posts →
Order planning
Delivery, lead times and logistics
Delivery
Composite plinths are long loads delivered by truck, usually with your sleepers and posts. Tell us about narrow access, steep driveways or overhead obstructions.
Lead time
Usually delivered in 2–10 business days. We confirm the date with you before you pay.
Freight is priced to your delivery suburb for most metro areas, or will be confirmed with you before payment.
Delivery and pick up options are shown on each product. Wait for our confirmation before arranging transport or attending for pick up.
What are composite plinths?
They are fibre reinforced polymer (FRP) panels that sit under a fence, between the posts. They do the same job as a concrete plinth at a fraction of the weight.
What colours and sizes are there?
The options are listed on each product. Colours are made to match the composite sleepers, so a wall and the fence base above it look like one piece.
Can composite plinths be stacked?
Ask us first. Stacking depends on the fence system and how much soil is held back, and the supplier sets the limit.
How do I order and what is the delivery time?
Add the products to your cart and send it as a quote, or contact us with your list. Delivery is usually 2 to 10 business days and we confirm the date before you pay.
Shop by location
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