KOTARBAU Ground Anchor Post Spike - 121 x 121 mm - 750 mm - Silver
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Product Information
Full details
The KOTARBAU Ground Anchor Post Spike is designed for DIY enthusiasts and professionals seeking a reliable, heavy-duty solution for securing wooden beams for fences, pergolas, carports, and garden sheds. Its primary benefit is the ability to provide stable, ground-fixed support without the need for concrete foundations, though it is best suited for stable soil conditions where rocks or heavy debris will not impede the driving process.
All features
| Colour | Grey |
|---|---|
| Model Part Number | 257226_AAAAT76258_6_JOOMFR |
| Brand | KOTARBAU |
Extended Product Information
FAQs
Does this product require concrete?
No, the main advantage of this post spike is that it anchors directly into the ground without the need for concrete foundations.
Can I use this for tall structures like pergolas?
Yes, it is suitable for pergolas, provided the soil is stable enough to support the weight and height of the structure.
Is the material rust-proof?
It is designed to be weather-resistant for outdoor use, but standard maintenance of the coating is recommended for long-term protection.
What is the total length of this anchor?
The specific model featured here is 750 mm in length.
Can I remove and reuse the spike?
Yes, it can be extracted if needed, though this may require specialized tools depending on how firmly it was driven.
Troubleshooting
Spike will not drive deeper into the ground
You have likely hit a rock or large obstruction. Remove the spike, relocate slightly, or clear the obstruction.
The post feels wobbly inside the sleeve
Ensure the post size matches the sleeve dimensions and tighten the lateral fixing screws or bolts.
Spike is leaning to one side
Check the alignment periodically while driving. If it shifts, use a level and apply force to the opposite side to nudge it back to vertical.
Pros and Cons
Pros
- No concrete or digging required for installation
- Provides immediate structural support for wooden posts
- Weather-resistant finish for long-term outdoor durability
- Compatible with a wide range of structures like pergolas and sheds
Cons
- Difficult to install in rocky or overly compacted clay soil
- Requires significant physical force to drive into the ground
- Less lateral support compared to traditional concrete-poured foundations
Setup, Compatibility & Care
To install, ensure your ground area is clear of large stones. Use an impact tool or a heavy mallet to drive the spike vertically. It is recommended to use a protective cap or scrap wood between the mallet and the spike to prevent damaging the metal coating. For maintenance, periodically inspect the bolts or fixings securing the wooden post to the sleeve to ensure they remain tight. In areas with high humidity or high salt content, applying an additional anti-corrosion sealant can extend the life of the galvanized finish.