Hello /r/DIY,
I have searched for a long time online for an answer to this, to no avail so far. I am looking to anchor a 5 ft privacy fence on top of a stone retaining wall that is on one side of my property.
I have some pics to show the wall. Unfortunately the wall is stone with cement, which leads me to believe it will be a real bitch to anchor anything on or drill into. There is some space between the wall and the public road, but I believe I may need to leave that for snow ploughs (town restrictions). Also, the field stone is deceptively large and extends under the soil perhaps a foot or so towards the road.
My thoughts right now are to use a length of rebar inserted into the fence posts (a couple of feet) and secured somehow (glue/adhesive maybe). Then drilling down into the stone wall (on the road side of the wall) a couple of feet and inserting the rebar. This combined with a fence post shoe at ground level to stop any twisting of the post.
I am probably going to hire someone to set the posts in case anything goes wrong, but I would like to know how one would possible go about this sort of install in a way that will be secure.
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