Steel Posts

Steel Posts – Strong, Reliable Support for Fencing and Garden Projects

Build straight, long-lasting fences and tidy garden boundaries with JACK’s Steel Posts range. Designed for Australian conditions, our posts make light work of everything from perimeter fencing and animal enclosures to trellis runs and temporary barriers. Whether you’re a weekend DIYer or a trade customer, you’ll find options that are easy to install, corrosion-resistant and compatible with common wire, mesh and panel systems.

A Complete Range of Steel Posts

Choose the right post for your job, finish and budget:

• Pro Series T-Post – Premium, heavy-duty T-profile for straight, stable fence lines and high-tension wire runs. Ideal for acreage, paddocks and durable garden boundaries.
• Garden Posts – Versatile, easy-to-handle posts for general garden uses: edging supports, small animal enclosures, vine/trellis lines and light fencing.
• Ultrapost – Black Bituminous Dipped – Steel posts coated in a protective black bituminous dip for in-ground durability and a low-glare finish that blends into plantings.
• Ultrapost – Hot-Dip Galvanised – A robust zinc coating for strong corrosion resistance, especially valuable in exposed sites and high-rainfall areas.
• Ultrapost – Trade Pack – Bulk value for larger runs and repeat projects. Keep a consistent post profile and finish across the whole fence line.

Each option is engineered for dependable performance, with finishes that stand up to heat, rain and routine garden work.

Why Choose JACK Steel Posts?

• Built for Australian conditions – Finishes and coatings selected to handle local weather and in-ground exposure.
• Straight, predictable installs – Consistent profiles make it easier to plumb posts, line up stays and tension wire.
• Versatile across projects – From rural wire to backyard trellis lines, our steel fence posts adapt to your plan.
• Trade and DIY friendly – Available in Trade Packs for volume builds, and single units for smaller weekend jobs.

Planning Your Fence Line – Quick Guide

1) Select your post type
Choose the finish to match exposure and look:

• Hot-dip galvanised for high exposure and long service life.
• Black bituminous dipped where you want an in-ground protective coating and a subdued appearance.
• Pro Series T-Post when you need extra stability, heavier wire loads or longer spans.
• Garden Posts for general garden and light fencing tasks.

2) Set your spacing
Typical light-duty garden fencing uses 1.8–2.4 m centres; heavier wire, wind exposure or uneven ground may require closer spacing. Corners, ends and gates need strainer/stay assemblies.

3) Set your depth
As a rule of thumb, bury at least one-third of the post length, increasing depth for taller fences, softer ground and high-wind sites. Tamp in lifts to reduce movement; concrete end and corner posts if the design calls for it.

4) Align, tension, finish
Run a string line for straightness, fix mesh or wire starting at a strainer, tension progressively, then check plumb and line before trimming.

Match the Post to the Job

• Start with the corners – Set end and corner posts first, then infill.
• Mind the line and level – Use a taut string line and a post level on every set.
• Respect the soil – In sandy or waterlogged sites, increase embedment and consider concrete for strains.
• Protect the coating – Avoid scoring hot-dip or bitumen surfaces; touch up if you cut.
• Finish edges cleanly – Cap or crimp where appropriate to keep water out and improve safety.

Steel Posts vs Timber – When Steel Wins

• Pro Series T-Post: https://meetjack.com.au/product/pro-series-t-post/
• Garden Posts: https://meetjack.com.au/product/garden-posts/
• Ultrapost – Black Bituminous Dipped: https://meetjack.com.au/product/ultrapost-black-bituminous-dipped/
• Ultrapost – Hot-Dip Galvanised: https://meetjack.com.au/product/ultrapost-hot-dip-galvanised/
• Ultrapost – Trade Pack: https://meetjack.com.au/product/ultrapost-trade-pack/

Available at selected Bunnings; check your local store.

FAQs – Steel Posts

Q1. What’s the difference between hot-dip galvanised and black bituminous dipped posts?
A. Hot-dip galvanised posts have a zinc coating for strong corrosion resistance, especially in exposed or high-rainfall areas. Black bituminous dipped posts have a protective bitumen coating that’s well suited to in-ground contact and offers a low-glare, discreet look in gardens.

Q2. How far apart should I space steel fence posts?
A. For light garden fencing, 1.8–2.4 m centres are common. Increase post density (closer spacing) for heavier wire, high winds, uneven ground or where loads are higher (gates, corners).

Q3. How deep do steel posts need to go?
A. A practical guide is one-third of the total post length in the ground, deeper for taller fences, soft soils or exposed sites. Corner and end posts often require deeper embedment and/or concrete footings.

Q4. Which post should I choose for long, tensioned wire runs?
A. The Pro Series T-Post or Ultrapost Hot-Dip Galvanised are strong choices for tensioned lines and longer spans, thanks to their robust profiles and coatings.

Q5. Can I use steel posts for trellis or espalier?
A. Yes. Many gardeners prefer Black Bituminous Dipped Ultrapost because the finish visually recedes behind foliage, while still providing reliable support for wires and vines.

Q6. Do you offer bulk packs for larger jobs?
A. Yes. Choose the Ultrapost Trade Pack to keep finish and sizing consistent across larger projects and maintenance cycles.

Q7. Are steel posts suitable near the coast?
A. Hot-Dip Galvanised posts are generally preferred in coastal or high-exposure environments. Always follow local best practice for embedment and maintenance.