Frequently asked questions and the answers go here….
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Can I paint the concrete posts?
Yes, the smooth finish of the concrete post allows easy and smooth application of paint using a paintbrush or roller. Ask your local paint expert which sort of paint to use for your fence and conditions.
If you’re using Colorbond sheeting for your fence panels you can paint your post to match your colour choice.
Click to see Colorbond Fencing colours on this link.
What does “prestressed” mean?
The Wire: 5.05mm high tensile wire with large amounts of carbon in the wire. This allows it to be tensioned during setting of the concrete. However, at the same time this prevents the wire from rusting.
The Concrete: We use 40MPA concrete, which is twice as hard as your normal house slab concrete. We use extra large amounts of cement and we vibrate the concrete when we place it into the moulds. This process is what prevents moisture entering the posts, causing it to break apart.
The reinforcing wire is NOT like the 10mm or 12mm mild steel used in residential house footings and other concrete fence posts which you may have seen explode when moisture has seeped into the posts, causing it to rust. This won’t happen with a prestressed post.
What tools do I need to handle a concrete fence post?
The fence posts are similar weight to a hardwood post of a similar length.
The concrete posts and garden boards will require proper manual handling techniques. You will need two people to lift and handle each posts. If you need to lift a bundle you will need a mechanical aid as they are heavy.
Product weights are as follows:
1800mm Garden Post – GP18 weighs 27.5kg each
2050mm Garden Post – GP20 weighs 31.6kg each
2400mm Garden Post – GP24 weighs 36kg each
3000mm Garden Post – GP30 weighs 27.5kg each
2400mm Garden Board – GB24 weighs 27.5kg each
You will only need to tools for digging and preparing your hole in the ground where the post will stand. Also if you;re compressing the ground around the post when its in the ground. If using a post driver to push in the posts, use a driving cap that will minimise the impact on the top of the post from the impact hammer.
All the holes are predrilled, so no drills are required.
Suitable PPE must be worn when handling posts.
PPE: Wear suitable protection for hands and feet.
PPE: Wear suitable protection for hands and feet.
Manual Handling: Use safe Manual Handling Techniques when handling, lifting and carrying the concrete posts.
Safe Work Australia (www.safeworkaustralia.gov.au) can provide guidance on manual handling.
1. We recommend you handle the posts as little as possible to prevent fatigue and injury.
2. As the posts are all over 20kg we recommend you complete a thorough risk assessment before attempting to manually handle the posts. Wherever possible, use a mechanical aid for the heavy lifting and moving the posts.
3. At least two people should be used when handling the concrete fence posts.
4. When placing the posts on the ground beside the prepared holes we recommend you DO NOT drop or throw the posts onto the ground, as this may cause a fracture through the concrete post.
PPE: Use suitable foot and hand protection whilst handling the concrete posts to avoid scratches and cuts from surface of the posts.
Can I cut the posts?
Yes, the posts can be cut using an angle grinder with a masonary disc.
The tool operator should be competent and experienced, or engage a professional to cut them to length.
Suitable PPE and a thorough risk assessment must be completed and adhered to before cutting.
Be sure to use the correct safety protection gear whilst using the tools and handling the posts.
Protective equipment for eyes, ears and hands and feet.
Click here to watch this video of how to cut a prestressed concrete post. https://youtu.be/9gn8UVp7jTM
Can I push dirt up against the garden board?
NOTE: SEPT 2018 – The Garden Board is no longer available. We suggest as best alternative, use the GP24 fence post – it is slightly narrower but will do the same job as a garden board.
Yes, the integrity of the prestressed concrete will not be affected by being exposed to moisture or acidity of the soil in a garden. The strength of the post will also hold in the pressure of heavy dirt and plants in a garden.
However, we recommend to avoid a high impact hit on the sides of the posts should be avoided, as it may cause damage to the post.
What spacing should I put the post at?
A standard fence post spacing of 2400mm between posts will be suitable, particularly on fairly level ground.
The 2400mm No Rot Garden Boards are designed specifically for use as a spacer between the posts. The garden board will provide protection and support for the fence palings or panels from contact with the ground, where moisture and termites abound. By using the “No Rot” Garden Boards between the posts and below the palings, will assist in giving a longer life to your fence.
What is a “Garden Board”?
The 2400mm No Rot Garden Boards are designed specifically as protection for your fence palings as well as a spacer between the posts. The garden board will provide protection and support for the fence palings or panels from contact with the ground, where moisture and termites abound. By using the “No Rot” Garden Boards between the posts and below the palings, will assist in giving a longer life to your fence.
The Garden Board can also be used as non-toxic and long lasting garden bed edging.
Do I need to cement the post into the ground?
No. Often landscapers and gardeners use cement to secure their fence posts in the ground and prolong the life of their post by giving them less contact to moist and acidic conditions of the soil.
However, the No Rot fence posts is already termite and rot proof, so no need to protect it with cement as well.
Concrete fence posts are suitable for fixing into the ground in the traditional way by digging a hole. Simply dig a hole approx. 600mm deep and fill in the hole firmly and compact the ground around the post. When placing concrete fence posts into the ground the posts should be buried a minimum of 600mm deep the recommended depth for a 1.80m or 6 foot high fence is 760mm or two foot six inches.
Concrete fence posts can be installed with either a mixture of ballast and cement or postfix. The amount required of either product depends on the size of the hole that is dug for the fence post.
The concrete fence post is strong enough to be used with a post driver hammer. It can be pounded in the ground. Refer to our product handling guide for more detail on this.
Is compacting the soil around the post important?
Yes. By compacting the ground around the post will minimise the movement of the post.
Which side of the post do I fit the timber palings or metal sheets to?
The collar bracket is a one-way bracket – designed so that the smoothest sides of the concrete posts are visible. The 70mm side of the post is the part that attaches to the timber palings or metal sheets.
How do I join a corner?
The collar bracket attaches the railing to the concrete post. Then simply use a bolt through the concrete post to the end rail to form a 90 degree turn.
Send us your questions:
Email: firstname.lastname@example.org or
Call us: 02 6682 8614