FENCE CONCRETE POSTS

Frequently Asked Questions

How do I fix a leaning or rotten fence post?

The quickest fix is a concrete repair spur, often called a god father post. Dig a hole about 600mm deep right beside the old post, stand the spur in, set it with post mix, then bolt it to the timber with two coach bolts. It saves pulling the whole post out and the panels either side stay where they are. 

If the post has snapped or rotted right through above ground, replace it with a concrete post instead. See our [concrete fence posts] or pick up a [concrete godfather post] from your nearest branch. 

How long does Postcrete take to set?

Most fast-setting post mixes, including Tarmac Postcrete, go off in about 5 to 10 minutes, and you can usually fix your panels after around 4 hours. Always check the bag, because times vary. On cold autumn days it sets more slowly, so give it longer before you hang anything heavy.

Pour the dry mix into the hole around the post, add water as the bag says, and hold the post upright with a level while it sets. See [Tarmac Postcrete 20kg], and our [fence accessories] for fixings. 

Do I need gravel boards under fence panels?

Yes, it's worth it. A gravel board sits along the bottom of the fence so the panel isn't touching the soil, which is where timber rots first. When a gravel board gets damaged, you replace a cheap board rather than a whole panel. Concrete gravel boards slot straight into concrete posts. 

They also help keep pets in and weeds down along the fence line. See our [gravel boards]. 

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