Drive in post spikes let you set fencing and garden posts without digging or concreting. The four-fin steel spike locks in for a solid, wind-resistant fit. Hot dip galvanised finish for long-term outdoor use.
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Size
Price
QTY
50 x 300mm
£2.89£3.47
Out of stock
50 x 450mm
£4.26£5.11
75 x 450mm
£6.18£7.42
75 x 600mm
£6.68£8.02
75 x 750mm
£7.31£8.77
100 x 600mm
£8.78£10.54
100 x 750mm
£9.75£11.70
An HDG drive in post spike is one of those fencing solutions that makes you wonder why anyone still bothers with a post hole digger. No digging, no bags of postcrete, no waiting for concrete to cure before you can get the gate hung. You drive the spike in, drop the post into the socket, tighten the bolt, and get on with the rest of the job. Simple as that.
These spikes are hot dip galvanised, which gives them proper long-term protection against rust and corrosion rather than the thin electro-zinc coating you find on cheaper alternatives. That matters when you’re putting something in the ground and expecting it to still be solid in ten years. The HDG finish handles wet soil, heavy rain, and everything the British weather throws at a fence line without flaking or corroding at the base where it matters most.
Where HDG Drive In Post Spikes Earn Their Keep
The four-fin spike design spreads the load as it goes into the ground, which resists the lateral movement that causes posts to lean over time. Wind loading on a fence panel puts real sideways force on the post base, and the fins grip the surrounding soil to resist it. The bolt-through socket clamps the post firmly once it’s seated, so there’s no wobble at the collar either.
Available in a range of sizes to suit different post sections, from 50mm through to 100mm square, and in lengths from 300mm up to 750mm. The longer spikes are worth using in softer or sandy ground where a shorter spike might pull over under load. Rocky or very stony ground is a different matter, but on a typical garden or field boundary, these go in cleanly with a post driver or a lump hammer and a driving cap.
At this price, it’s easy to keep a few of each size on the van. Far better than turning up to a fencing job and realising you’re short on the 75x450s.
Pro Tip: Always use a proper driving cap or steel dolly over the spike when hammering in to protect the socket walls and keep the spike plumb as it goes down.
Drive in post spikes are used wherever timber fence posts or gate posts need to be installed quickly and without groundworks. Common applications include garden fencing, field boundaries, equestrian post and rail, close board panel fencing, driveway gates, and general estate work. Landscapers, fencing contractors, and groundwork teams all use them regularly. They are also handy for temporary fencing arrangements where posts may need to be relocated later, since the spike can be extracted far more easily than a concreted-in post.
Best For
Garden fence posts
Close board panel fencing
Field and boundary fencing
Gate posts
Post and rail fencing
Temporary fence installations
Available Sizes
50 x 300mm
50 x 450mm
75 x 450mm
75 x 600mm
75 x 750mm
100 x 600mm
100 x 750mm
Key Features
Hot dip galvanised finish
Four-fin spike for ground grip
Bolt-through post socket
No digging or concreting required
Wind-resistant installation
Suitable for softwood and hardwood posts
Not suitable for: Not suitable for installation into rocky, heavily stony, or concrete ground where the spike cannot be driven to full depth. Not recommended for very large structural gate posts carrying heavy automated gate systems, where concreted-in posts are a more reliable solution.
Mark the post position and check the ground is clear of buried services. Position the spike upright on the mark and begin driving with a post driver or lump hammer fitted with a driving cap over the socket. Check for plumb regularly as you go, correcting any lean before the spike is fully seated. Drive to full depth so all four fins are below ground level.
Insert the timber post into the socket, check for plumb in both directions, then tighten the bolt to clamp the post securely. In softer ground, a longer spike will give better resistance to wind loading, so size selection is worth thinking about before you start.
Mark the post position and confirm no buried services are present below
Stand the spike upright on the mark with a driving cap seated over the socket
Drive the spike using a post driver or lump hammer, checking for plumb every few blows
Correct any lean as you go before the spike gets too deep to adjust easily
Drive until all four fins are fully below ground level and the socket sits at surface level
Insert the timber post into the socket and check plumb in both directions
Tighten the bolt firmly to clamp the post in position
Do I need any special tools to install these post spikes?
A post driver or a lump hammer with a driving cap is all you need. The driving cap protects the socket during installation and helps keep the spike running straight. A spirit level is useful for checking plumb as you drive.
How do I choose the right size spike for my post?
Match the socket size to your post section, so a 75mm post needs a 75mm spike. For length, use the longer options in softer ground or where wind loading will be higher. The 750mm lengths are the better choice on light sandy soils or exposed sites.
Why hot dip galvanised rather than standard zinc plated?
Hot dip galvanising applies a much thicker zinc coating than electro-zinc or standard zinc plating. In ground contact and outdoor conditions, that extra thickness makes a real difference to service life, particularly at the soil line where corrosion tends to start.
Manufactured from steel with a hot dip galvanised finish, these post spikes meet the demands of permanent outdoor and in-ground use. The four-fin spike profile distributes soil pressure evenly to resist lateral movement under wind loading. The bolt-through socket collar provides a secure, adjustable clamp for the post without the need for adhesive or additional fixings.
From £5.66£6.79 EX VATINC VAT Select options This product has multiple variants. The options may be chosen on the product page
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