Best current price£12.97from B&Q
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B&Q£12.97Visit shop - Ground Spike Heavy Duty Galvanised Drive-In Pergola Post Anchor Support Stakes 76X76mm750mm
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Designed for landscaping professionals and DIY enthusiasts, this heavy-duty ground spike provides a robust and reliable foundation for 91x91mm fence posts and pergolas. Its hot deep galvanised finish ensures excellent resistance to rust and weather-related corrosion, offering long-term stability for outdoor structures. The primary caveat is that this anchor is specifically sized for 91mm posts; users must ensure their timber matches these dimensions precisely for a secure fit without excessive wobbling.
| Colour | Silver |
|---|---|
| Model Part Number | MPSG-90 |
| Brand | B&Q |
Yes, this spike is ideal for standard fencing posts measuring 91x91mm.
No, this is a drive-in spike, which eliminates the need for concrete in many soil types.
The steel is 2mm thick, providing high durability and strength.
It is hot deep galvanised to provide high resistance to rust and environmental corrosion.
The four holes in the base measure 11mm in diameter.
Drive-in spikes generally perform best in firm, compacted soil. Marshy or very loose soil may require a concrete-based solution.
Use wooden shims or check if the timber post has dried out and shrunk. If the post is significantly smaller than 91mm, consider using a different size anchor.
Pre-drill or clear the ground using a metal rod or digging bar to remove obstructions before attempting to drive the spike.
Remove the spike and re-align. Use a spirit level on two sides of the spike during the initial phase of driving it into the ground.
To install, clear the installation area of large rocks or subterranean debris. Use a driving tool specifically designed for post anchors to prevent damage to the top of the spike while hammering it into the ground. Ensure the spike is level before driving it to the full depth. To maintain the structural integrity, periodically inspect the bolts if you have used the secondary attachment holes, and ensure that the post remains firmly seated within the sleeve. Although galvanised, applying a small amount of exterior-grade wood preservative to the base of your timber post before inserting it into the spike can further extend the lifespan of the installation.
