Post base or plinth iron for two 45x95

[Fundersam99]

I am going to build a portal with a 140cm wide gate. I had planned to buy 95 posts but they are out of stock everywhere so I went for 2 pieces of 45x95 screwed and glued together.
I had already bought adjustable post shoes for the 95 posts, as you can see in image 1, but I'm now wondering if it will be stable if I use plinth iron instead, since they reach higher up?
How do you level the plinth iron in the plinth when there's nothing to hang them on?
If I am going to use plinth iron, should they be opposite each other, i.e., screwed into the same beam, or should they be angled opposite each other, screwed into separate beams?

 

[Demmpa]

We have had both trellis and fence using foundations with adjustable post shoes.
I quickly switched the trellis to foundations with foundation metal, the reason being that the threaded rods bent as soon as there was a little wind.

Even the threaded rods for the fence bent from the wind even though the fence was only 90 cm high and at most 50% covered.

 

[Fundersam99]

We have had both trellis and fencing via concrete pillars with adjustable post shoes.
I quickly replaced those for the trellis with concrete pillars and pillar iron, the reason being that the threaded rod bent as soon as there was a little wind.

Even the threaded rods for the fence bent from the wind even though the fence was only 90 cm high and at most 50% covered.

Sounds like I should go with pillar iron instead.
How do you get them straight when casting the pillar?

 

[z_bumbi]

Screw them into a beam and level before casting.

 

[Fundersam99]

Screw them into a beam and level them before casting.

Ok, so I screw both into 2 beams just as they should be when finished, then I hang them on two small pieces of wood that support the paper tube? Since it's two 45x95s that are screwed together, I should put one iron on each side, meaning each beam has "only" one iron end, but each post has two. I hope you understand.

 

[z_bumbi]

It's easier if you have something of the same thickness as the post and support outside of the casting. For example, screw together two pieces of planks or use the posts you've made; in the latter case, place the screw holes so they are hidden by the post brackets.