Oz-Post Website

Oz-Post Ground Spikes


What are Oz-Post ground spikes?

Oz-Post ground spikes are pre-fabricated galvanized steel bases (ground anchors) designed to permanently support posts without the need to dig holes and pour concrete foundations. Oz-Posts foundations are used in signpost, marker post, street furniture, underground service marker, fencing, domestic and farm stockyard applications.

Why use Oz-Post?

The Oz-Post range are the original system for saving time and labour when installing permanent and temporary posts. Oz-Posts will save time and money through shorter installation times and longer life span. Across all applications an Oz-Post is fully recyclable, retrievable and re-useable also eliminating wastage. When removed an Oz-Post will not leave a hole, making it the perfect quick and easy option for both temporary and permanent fencing requirements. 

Oz-Posts have also been impact tested, rated for horizontal loads and wind resistance and are manufactured in accordance with Australian Standards. Oz-Post is the perfect alternative to time consuming post installation methods and have a straight or tapered fin type to suit soft through to hard soil types.

How are they installed?

An Oz-Post ground spike is simply driven into the ground with a jackhammer or can be manually hammered in, with no digging or concreting required. Simply drive the ground anchor into the ground, insert the post and fix into place using the Oz-Post fixing wedge.

Which Oz-Post should I use?

Oz-Posts are available in many different shapes and sizes to suit any application. To find the best spike for your application please view our chart below, alternately please contact one of our sales team for customised assistance on 02 4033 6500 or email us at sales@ozpost.com.au.

Oz Post Spike install Gallery 9
Oz Post Spike install Gallery 12

Available in multiple lengths, housing and fin types with standard sizes and lengths to suit any application.

fin housing

Oz-Post has housing to suit any application. The standard cup dimensions are manufactured to suit round, square and rectangular posts. The standard sizes are indicated below in millimetres. Custom made sizes are also available on request. Our WA and SA series have been made for South Australian and Western Australian profiles.


Oz-Post pickets are available in various lengths to suit most ground conditions. For more information on the ideal application of each of the Oz-Post lengths, please view our table below.


Perfect for bitumen or road base. The 250mm picket is commonly used on roundabouts for hazard and keep left signs.

350mm & 450mm 

The mid range sizes suits extremely hard or well compacted areas such as roadside shoulders, asphalt or sandstone.


Our longer 600mm pickets are ideal in areas with highly compacted soil, hard clay or natural earth conditions.


The longest Oz-Post spike length is perfect for more reactive soil types such as black soil.


With fifteen different types of Oz-Post, there is an Oz-Post for every possible situation, with tapered and straight edged fins along with our range of custom sizes to suit. Contact one of our Oz-Post experts to find the ideal Oz-Post for your project.



Serviceable Industries

For a customised quote or to find out more, please contact our team on 02 4033 6500. 

Engineering Specifications