How to Install Black Security Fence Panels

How to Install Black Security Fence Panels

Posted by Lee Benson on 28th Apr 2025

Steel security fencing is designed to keep intruders out, and it utilises many great features to make sure it does its job. At Outback Fencing, we take pride in selling the best fences on the market, and our crimped spear-top security fencing is no different.

Our black security fencing features highly durable galvanised steel (steel is one of the most popular fencing materials for its strength) and black powder coating which makes it rust and corrosion resistant. This, along with the spear-top and intelligent spacing between pillars, makes it nearly impossible to scale and climb, but it also works as a psychological deterrent due to its intimidating design. It’s compliant with Australian fencing regulations, and its sleek powder coat makes it one of the easiest fences to maintain. And finally, it’s super simple to install on your own.

Here at Outback Fencing, we supply thousands of fencing materials to homeowners all across Australia, and everything in our range is a product we know back to front and truly believe in. We’re well-informed on the industry’s materials and standards, and our selection reflects the best of the bunch. From Colorbond Fencing, a diverse range of PVC fences, pool fencing and security fencing, we not only supply but also aim to be a helpful guide in how best to use and install fencing that protects, elevates and separates your space.

  1. Step 1: Plan & Mark Out Your Fence Line
  2. Step 2: Mark Post Holes with a Spacer
  3. Step 3: Dig Post Holes
  4. Step 4: Attach Brackets to the Posts
  5. Step 5: Install the Fence Panels

Tools and materials you’ll need:

  • Fence panels (approx. 2.4m wide)
  • Fence posts
  • Brackets and screws
  • String line
  • Post caps
  • Spacer (cut to the length of your panel)
  • Measuring tape
  • Spray paint or marking stick
  • Shovel or post-hole digger
  • Concrete mix
  • Level
  • Power drill

Step 1: Plan & Mark Out Your Fence Line

Before any digging starts, create a clear plan of where your fence will go. As this particular fence is used for security, you might be using it to secure the edge of your property, so make sure any obstructions are removed along the way. If your outdoor space is designed with garden plants, try to keep your fenceline clear of vegetation. Start by placing pegs at each end of the fence line and running a string line tightly between them, making sure the string line is nice and level and as close to the fence line as possible. It can't be placed on the fence line, as then it would be destroyed when installing the fence. Set the string line at the bottom height of the fence panel, as this helps you see any potential gaps under the panel before installing.

Step 2: Mark Post Holes with a Spacer

Use a spacer cut to the exact width of your panel (usually around 2.4 metres, but you can check your order to confirm) to mark where each black steel post will go. Place the spacer between your first post and where the next one will be, then you can use a post cap to mark the spot, pick up the spacer and repeat for the next fencing panel. Continue this along the entire fence line using the spacer and a post cap to leapfrog forward for accurate spacing.

Step 3: Dig Post Holes

To get the right depth of your post holes, take your posts and measure a length of 1.8m. This will help you make sure the full 1.8m is above ground when you drop the posts into the concrete. Then you can dig the holes in the marked positions. Since standard posts are 2.4m high, your holes need to be 0.6m deep and about 20cm to 40cm wide to accommodate the concrete.

Once you've dug the holes, you’ll be able to check if their depth is correct by slotting a post in and checking if the 1.8m mark on the post lines up with the string line. If not, dig down until it does, or if it's too deep, add some dirt back in until the post is aligned. 

When you're ready to secure the posts, level the post vertically with your leveller and set it in place using concrete, pouring it into the hole around the post while making sure the post stays level. We used dirt temporarily as a demonstration in the video, but while some of the most common fencing styles only require dirt, you must use concrete for this heavy security fencing.

Step 4: Attach Brackets to the Posts

It’s now time to begin attaching the security fence panels to the posts. Start this step by attaching a bracket to the internal face of the post on which the panel will attach. You’ll need to determine where the rail of the panel will sit on the post, so take the panel and measure downwards from the top of the picket to the top of the rail, which for the fence in the demonstration is 150cm.

Using this length, measure the same distance down from the top of the post, and this is where the top of the bracket will sit. Place the bracket against the post and screw it in with an electric drill. For the other three panel brackets, don’t screw them into the post yet. Instead, slide them into the rails of the panel.

Step 5: Install the Fence Panels

You can then position the panel into place, but first slide the top rail into the single bracket attached to the post. The black security fence panels are made from steel, which means while they're one of the most durable fencing styles, they’re quite heavy, and you might need two people to position them into place. Once in place, screw the remaining brackets into the post, and then repeat the process of attaching the panels to the posts for the remaining sections. And that’s it! Now you know how to install a security fence, which means you basically know how to repair a broken fence by repeating the process with replacement parts.

Packing Up

After witnessing the strength and integrity of black security fencing, the idea of installing it on your own might feel a little out of your depth. The beauty of this product, in particular, is that its 6-point weld system means that the panels come holding lots of strength, and it’s as simple as putting it all together, albeit there is some digging and concrete setting to do. It also comes powder coated, and there are many fantastic benefits of powder coated fencing beyond protection, like corrosion and rust resistance and low maintenance.

Some quick tips to remember when installing black security fence panels are to always double-check posts are level before the concrete sets, use two people to lift and install each panel safely and don't skip the stage where you mark out the fence line and install a string line. The accuracy will help it all come together perfectly.

Alongside the robust security, these fences look sharp, last for years and meet Australian standards for safety and durability. At Outback Fencing, we’re passionate about helping Australians secure their homes and businesses with quality materials that are built to last. Whether you're putting up your very first panel or upgrading an old fence, we’ve got the gear, the knowledge and the support to help you every step of the way.

Check out our full range on our website, or explore our blog for more helpful resources and how-to guides.

About the author

author

Lee Benson

With over a decade of experience in all things Australian-made fencing solutions, Lee Benson is one of Adelaide's most trusted names in fencing. Lee takes great pride in making sure that Outback Fencing's range of fencing supplies is designed to provide Australian homeowners and business owners with all the security and design essentials that they need to get the very most out of their property fencing.

With a passion for problem solving, Lee takes great pride in designing stunning garden spaces that stand up to Australia's harshest weather extremes. Lee draws from all his expert insights to consistently provide his customers with the most suitable fencing solutions for their home and property.