Plastic Wedges for Concrete Sleepers: Small Tool, Big Difference
Plastic wedges are a simple but essential accessory for installing concrete sleeper retaining walls — keeping sleepers level and evenly spaced during installation.
Plastic wedges are a small but essential accessory for installing concrete sleeper retaining walls. They are used to keep sleepers level and evenly spaced during installation — making the difference between a wall that looks professional and one that looks uneven.
FPM Building Supplies stocks plastic wedges alongside our full range of concrete sleepers and retaining wall materials.
What Are Plastic Wedges Used For?
Plastic wedges are used during the installation of concrete sleeper retaining walls to:
Level sleepers — Concrete sleepers must be installed level (or to a consistent grade on sloping ground). Wedges can be used to fine-tune the position of each sleeper as it is installed.
Maintain consistent spacing — Wedges can be used to maintain a consistent gap between sleepers, ensuring the wall has a uniform appearance.
Prevent movement during installation — Once a sleeper is positioned, wedges can be used to hold it in place while the next sleeper is installed above it.
Why Not Just Use Timber Offcuts?
Timber offcuts are sometimes used as temporary spacers during installation, but plastic wedges have several advantages:
- Consistent size — plastic wedges are manufactured to a consistent size, making it easier to achieve uniform spacing
- Durable — plastic does not compress or deteriorate over time the way timber can
- Non-absorbent — plastic wedges do not absorb moisture, which can cause timber offcuts to swell or rot
How Many Wedges Do I Need?
The number of wedges required depends on the size of the wall and the installation method. As a general guide, allow 2–4 wedges per sleeper for a standard installation.
Other Retaining Wall Accessories
FPM Building Supplies stocks a full range of retaining wall accessories alongside our plastic wedges, including:
- Sleeper grabber — for lifting and positioning sleepers with a machine
- Geofabric drainage cloth — for drainage behind the wall
- Drainage pipe (ag pipe) — for carrying water away from behind the wall
- Concrete mix and rapid set concrete — for setting posts
Buy Plastic Wedges from FPM
FPM Building Supplies is located at 32 Fullarton Drive, Epping VIC 3076. We offer delivery across Victoria.
Contact us on 0421 370 700 or visit us in Epping.
FPM Building Supplies — Concrete Sleepers · Steel Posts · Retaining Wall Accessories · Victoria-Wide Delivery
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