Garden fence using 75mm square posts and post shoes

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Hi all,

This is my first ever time putting up a fence - looking for a bit of advice before I go too far.

I have a solid, but slightly leaning wall (still very solid and been there over 100 years) with a flat top and I plan to put my fence on top of that wall using these: https://www.toolstation.com/bolt-down-post-shoe/p42734 - I've bolted one in as a test with Rawlbolts M8 x 80mm and it's not going anywhere.

I'm putting the fence on top of the wall instead of coming in a bit to ground, losing some garden space into the bargain, going around obstacles (2 medium sized trees) and digging holes, using concrete etc. - it seems smart - by doing it on the wall I can avoid all of that - it is just some effort getting the Rawlbolt holes drilled (14mm, normal Makita drill, but it does the job).

However, the top of the wall does have a slight lean... therefore the fence post I've put in has a slight lean... and the taller the post I use the more prominent that lean will be. So I'd like to straighten them out and I'd like to know the best way.

I've ruled out angle grinding into the top of the wall to create something perfectly level. I've ruled out creating my own concrete 'pads' that were level.

So I thought that left me with possibly using some M8 penny washers on two of the post shoe holes, to lift one side a little bit... or something like these plastic wedges?

https://www.screwfix.com/p/broadfix...VWOvtCh3WpwNREAQYAiABEgIMJfD_BwE&gclsrc=aw.ds

Or:

https://www.toolstation.com/roughneck-plastic-floor-packer-set/p13272

They're obviously not designed for the issue at hand, but the first Review on the first item clearly says - "I used mine to wedge fence post brackets that were on an incline. Used wedges to pull posts to 90 degrees. Worked great and posts were solid."

I had originally thought they'd be placed under the post shoe... and then the post shoe be bolted down, possibly compressing them a bit, but certainly changing the angle more to level... do you think that'll work a treat or am I better with the washers?

I think this is what that Reviewer implies... although I started to wonder if he'd banged a wedge into the post shoe, alongside the post, to alter its direction, while leaving the shoe as-was. I still think he probably did the first idea... wedges under the post shoe, slightly separating the wall and post shoe.

If wedges are a go - which would be better - the green horseshoe ones look good as they could go around the bolt thread, whereas I guess I'd need to drill the yellow ones?

Penny washers would be simple... I have plenty, they'd be stainless steel, but they don't cover as much surface area as the wedges would... is there a risk the post show would just deform?
 
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Most important thing, what sort and height of fence do you intend sitting on the top of the wall plus ,whats the height/ width of the wall
 
Posts every 1.5m, post height 1.8m, joined via just rails with 2cm gaps (maybe)? The wall is at ground level... the width of the top must be almost 3 times the size of the post shoe... because I came in from the edge 4cm to drill the first hole and I'm still on one half of it.
 
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No, it'll have those 2cm gaps specifically for the wind... it's not that exposed - lots of trees around, that's why I'm not going higher - too many obstructions to clear.
 
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I have a brick wall that I want to demolish.

I've attached 6-ft levers to the bricks at the top. Will this pull the whole wall over, or just pull out the top bricks?
 
I don't know... I don't have experience of basic brick walls of the type you have. :rolleyes: I do know I'd be careful about making assumptions in any case...
 
i have replaced a fence that was bolted to a wall and lasted 25+ years (my mother-in-law lived here since 1997 and it was up then, now we live there), very windy area and only recently due to the post being rotten and wood worm got the better of the fence, so 2018 my wife wanted a decorative section from B&Q https://www.diy.com/departments/goo...Vz4BQBh0TpgKSEAQYBCABEgISxPD_BwE&gclsrc=aw.ds
and during the virus I finished off the rest of the fence this year.

I used a 2.4m posts 95x45 tanalised posts , which I took below the ground and postcrete in
then a smaller piece up to the wall top and again quite a way down into the earth past the wall foundations and postcreted all in.
Then used 2 coach bolts through both posts and the wall to fix.
https://www.screwfix.com/p/easyfix-...-bright-zinc-plated-m12-x-200mm-25-pack/51675
with Penny washers and 2 NUTS on the back of the fence

I used some furniture blocks to fix the panels , so i can easily remove a panel if i need to clear ivy etc off the panel

2018 i put up about 21' length this is the very windy part , as we are only .5km from sea and strong winds come across that part of the garden, and they survived 2 winters of high winds and this year finished off the other 5x 6' length fences panels
I packed slightly to account for upright levels and horizontal levels

I used these https://www.amazon.co.uk/gp/product/B00GOUP0IC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
to get a space between the fence panel and wall , so the panel was not on the wall completely, just a mm or so
 

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