Root Barrier & Garden Edging
Make your garden thrive
Trees, shrubs and lawn, although beautiful, often invade man-made structures with their roots. Root Barrier acts as a continuous, physical barrier to minimise the damaging effects of tree roots to pavements, foundations, driveways, roads and pipes.
Our Root Barrier is tough, flexible and virtually indestructible – it will never rot, rust, splinter or crack. Plus it’s made in Australia from over 90+% Low Density Polyethylene (LDPE) plastic which is more resistant to brittleness and Environmental Stress Cracking than those made from High Density Polyethylene (HDPE).
It is suitable for use as a barrier to a wide range of roots including: grass, mint, bamboo, monkey grass, palm trees, weeping willow, bermuda grass, knotweed, raspberries, ficus and pine trees.
Our Heavy Duty Root Barrier is the thickest root barrier sheet on the market in Australia, minimising the damaging effects of tree roots to pavements, foundations, driveways, roads and pipes. It acts as a continuous 3mm thick physical barrier against bamboo, established trees and other roots.
Heavy Duty Root Barrier is suitable for use as a barrier to a wide range of roots including: grass, mint, bamboo, monkey grass, palm trees, weeping willow, bermuda grass, knotweed, raspberries, ficus and pine trees.

Benefits of EnduraPost Square Pickets
- Australian Made and Owned
- Sustainable & Responsible Product
- Mineral Composite Post
- 100% Recycled Plastic
- Non-Toxic
- Fully Insulated
- Long-Lasting
- Powerful Bounce Back Strength
- Burning Point 350°C
- Will Not Rust, Rot or Corrode
- Lightweight for handling & transport
- Gentle on wire coatings
Technical Specifications
- Australian Made
- Polymer Mineral Composite
- Black in colour
- UV-Stabilised
- Square 38mm (w) x 38mm (d) with driving point
- 1650mm (5’6”) long 2.3kg ea [470kg per pack of 200 incl feet]
- Pack dimensions 165cm (L) x 95cm (W) x 39cm (H)
- 1800mm (6’) long 2.5kg ea [500kg per pack of 200 incl feet]
- Pack dimensions 185cm (L) x 95cm (W) x 39cm (H)
- Pre-drilled holes: 14 x 7mm holes
- Life expectancy of 50+ years
- Manufactured using recycled post-consumer soft plastics, in accordance with AS/NZS ISO 14021



Easy Installation
EnduraPost Square Picket can be easily installed using manual or mechanical drivers and can be sawn, drilled and screwed. In hard or rocky ground, simply make a pilot hole with a 30-40mm x 450mm masonry drill bit or ground auger to clear rocks or roots before installing. Designed as an inline post (not suitable as a weight-bearing post or strainer), EnduraPost can support all forms of wire, including plain, barbed, hinge-joint and barrier-mesh fencing. It is also great for creating mesh tree-guards around newly planted trees. Download our installation guide from downloads page.
Frequently Asked Questions
Are they solid or hollow?
EnduraPost Square Pickets and Droppers are solid recycled PP (polypropylene)plastic.
Do they break easily?
Whilst it is possible to break them it is not easy to do so. This is because they are made from recycled woven polypropylene which is extremely tough. They are extruded and pressurized into a mold which further increases their strength and durability. They are made to be handled in the same way as wooden or steel pickets are. If they are breaking easily, please contact EnduraPost.
Do they burn easily in a bushfire?
They have been tested to withstand fire up to 350⁰C which is usually hotter than a grass fire that normally reaches between 200-250⁰C. Some larger bush fires can burn hotter particularly if the fuel load is wood. Keeping wood away from fence lines should provide adequate protections, meaning that if a fire happens to pass through it is likely going to be a grass only fire. They are also NOT susceptible to ember attacks unlike wood.
Will they last against the hot sun in Australia?
They have been treated with a UV treatment to last 50+ years
Will they bend over in the hot sun?
Although they are made of plastic, they are not going to bend over in the hot sun. Plastic can change shape when there are temperature differences from one side to the other. If pickets are laid down on the ground in direct sunlight, they may start to warp or bend but that is because the polymers move due to temperature variations from one side to the other. If this occurs, you can turn them over and they will straighten once again. This does not impact the strength or durability of the picket, and once they have been driven into place the temperature variations are not severe enough for them to warp or bend.
How do I run barbed wire through the holes?
Although the photos show plain wire run through the holes, many prefer to use the holes to tie back to instead. Both methods work well for plain wire, whereas, for barbed wire or hinge-joint / ring-lock simply tie back to the appropriate holes provided.
Can I drive them in with a petrol driver?
Yes, they are tough and can be driven using mechanical or motorized drivers, or, by hydraulic drivers.
Can I build my entire fence with the EnduraPost Square Pickets?
As they are made from plastic, we only recommend they are used as an in-line picket. They are not suitable as a weight bearing post like a strainer or in-line stiff post. It’s recommended that EnduraPost Square Pickets be combined with Concrete End Strainers or similar. Then we recommend that a concrete line post or similar is installed as support after every 4 to 6 EnduraPost Square Pickets in a straight line, or, when the fence should make a turn.
Are they harder to drive in than a steel picket?
They are slightly harder to drive in due to the surface area difference compared to steel pickets.
How should I drive them into stony or tough ground?
For stony or very hard ground we recommend helping them by predrilling a pilot hole using a 35mm x 450mm masonry drill before driving them in.
Do they loosen in the ground?
Due to their unique design allowing them to have some flex with strong memory bounce back, they do not typically loosen in the ground. For this reason they also do not need to be inserted into the ground as deeply, we recommend a min 300mm is sufficient for most applications in most soil types.