• Home
  • /
  • Steel Post 100x100x3.0mm 4000mm Southerly

Steel Post 100x100x3.0mm 4000mm Southerly

SKU SP10040ST
$293.90

SPECIAL ORDER ITEM - Order Now


Square Steel Posts are purpose-built as the support for fencing panels and the mounting point for gate installations, to provide a strong foundation for your fence line. Made from premium galvanised steel, these posts provide excellent durability and resistance to corrosion, making them ideal for long-term outdoor use.

With a neat square profile, they pair perfectly with a variety of fence panel styles and gate types. Available in multiple sizes and powder-coated in the complete range of Colorbond® fencing finishes, square steel posts can be cemented into the ground for a clean, professional look.

How deep should your post go?

Soil TypeDepthApproximate bags of cement
Rock400mm1 bag per hole (20kg bag)
Clay/Firm Earth600mm2 bags per hole (20kg bag)
Sand/Loose fill900mm3 bags per hole (20kg bag)

To determine the correct post size, add the height of your fence plus the depth into the ground. For example, an 1800mm high fence in clay soil would be a 2400mm (2.4m) post.

When purchasing fence posts, don't forget to include post caps (sold separately) for the top of each post to stop rainwater/debris intrusion to the inside of the post which will cause corrosion/rust.