New gatepost..

Hi - I want to create a new gateway. It will be between my garage wall and my neighbour's wall. I don't want to attach to their wall because of the noise issue it will create (I have that situation on the other side of my house). There is a concrete path and a gap of 30cm between that and next door's wall. I have lots of bricks that I could use.
The gate will be 180cm high so the post needs to be quite tall and robust.
I'm a novice so any advice would be appreciated - keep the explanations simple please!
There is photo but I don't know if you can see it..

First of all, Christine, you're in the wrong place. This forum is for people who want to show off their own projects, rather than for those who want advice.

I've asked the mods to move it for you, either to Garden, or Building.

Secondly, the photos are not available.

Thirdly, you need to specify which post you will hang the gate on, (Put the hinges on), the one nearest your house or the one furthest away.

Finally, you should say what material you intend to use for the gate and the post.

I suspect you will need to make a hole in the concrete path. The only alternative to that is to fix it your neighbour's wall. The 300mm gap will not be sufficient on its own to support a gate post unless you're prepared to build a brick pillar, which will need a foundation, thus a hole in the path, anyway.

if you put a lintel or brace between the tops of the two posts, it will prevent them leaning together and add rigidity.

If there is a gap a foot wide (30cm), then you can dig a hole in it for the post to go in, set in concrete, it is wide enough. When you dig the hole you will probably expose the brickwork of the wall, and the concrete of the path. If your concrete is packed tightly against them it will prevent rock and wobble.

Wooden posts in contact with the ground will rot and break off surprisingly quickly, so if it was me, I would sink a concrete spur into the ground, and bolt the post to it.