Attaching fence post to concrete wall

[NJ C]

A fence post in our back garden snapped in the wind. There is a low (30cm high) concrete wall/base between our garden and the neighbors driveway. It looks as if this had spaces for the posts left when it was made, so the concrete continues along the back of the slot. I'm thinking of fixing the posts to this wall for added stability, possibly using something like this slotted into the space, but I can't find it to fit 10cm size posts. Any ideas where to find it, or other ideas for securing the posts to the concrete?

I'm assuming I can dig out the remainder of the post that's left in the ground, but with such small access that might not be possible.

 

[yorksbuilder]

How would you fix that one you found in the gap? Will be impossible to drill the holes.

Lots of other options from Metpost

Metpost 100mm x 100mm Post Support Concrete In System 2

The Metpost Concrete-In has been designed for use in hard-standing areas or areas where ground conditions prevent the use of Metpost Post Support spikes. The Metpost Concrete-In is ideal for supporting car ports, pergolas, raised decks and general fencing applications and is available in wedged...

www.builderdepot.co.uk

you may be better off using one of the spike ones.

The metpost anchors all rely on either very solid ground for the spike or good concreting in for the other one.

Id advise you to first dig out the existing old post and see if you can actually put a post in the hole and concrete it in securely. Consider a concrete post or DURAPOST https://www.oakdalefencing.co.uk/product/fencemate-galvanised-dura-post to avoid it rotting in future.

 

[NJ C]

Thanks for the reply! My thinking with the one I found was to slot it into the gap so the wings are flush with the wall with the post in the gap. Screw the wings to the wall using concrete screws & pre drilled holes. Won't be attached at the back but looks like it's not designed to be anyway.

 

[yorksbuilder]

OK, thats assuming there is any thickness of material there to fix to. Its too small for if you are wanting 10cm posts anyway.

I fixed a fence into a garden wall like that before, cleaned out all holes and grouted the new posts into place with a cementitous grout

 

[NJ C]

Looks like the wall may be more of a base as it goes back 12+cm. You're right though, concrete is probably the sensible way to go.