Is it possible to stabilize a wobbly post shoe?

[Sargen]

I have built a trellis consisting of 3 ~2.5 m 95 mm posts with a 120 beam as the top rail. Rebar between the posts that hopefully some type of vegetation will climb on in the future. The posts are set in the ground with post shoes in cast concrete foundations.

I thought I followed all the rules of the art but the heck, the posts turned out really wobbly. Maybe iron would have been better than shoes here.

Is there something that can be done to stabilize it down in the post shoe somehow? For example, can a heck of a lot of chemical anchor be smeared on the iron that goes between the foundation and the shoe itself?

Otherwise, I'll have to think of some type of built-in support in the box that will be placed in front of the trellis.

 

[Claes Sörmland]

I have also made the mistake of using stolpskor. There is no other solution than to redo it.

An alternative if it is NTR-A pressure-treated poles is to build a form around the plinth and pole and do a round concreting of the mess.

 

[Sargen]

Thanks, Claes. I suspected as much.

What lifespan can one hope for if it's regular treated wood that's being embedded?

Let's say the wife is "prone to change" – so if it stands steady and holds up for 6-7 years, it feels like a worthwhile compromise to consider. By then, it would be time to do something else in that spot anyway.

 

[Dublin]

2.5 m is quite high regardless, you'll get the most stability if you can arrange some kind of brace or support that you attach about half a meter up.

 

[Jonas786]

I have cast down printed posts (95x95) in concrete so it became super stable. It was 18 years ago and I see no signs of the posts rotting.

 

[Sargen]

I usually appreciate when the OP gives a follow-up after asking a question, so here's mine:

I left the somewhat questionable casting as it was and proceeded to build in a flower box at the bottom. And it actually made the whole structure surprisingly stable.

So now I'm letting this go and moving on to new mistakes instead 😅