Attaching 4" Post to brick wall

[JimboM]

Putting a fence up at the weekend, it's going to be concrete posts in the main but at one end it needs to attach to a brick wall and the footings mean I can't dig down. If I use a 4" wooden post what would be the best way to fix it directly to the the wall?
I've got some 160mm M10 coach screws I could use with rawlplugs or Toolstation have 150mm M10 concrete screws? If I countersink the heads in by approx 20mm would 80mm/70mm in the wall be enough? 3 fixings over the 6ft height?

Thanks

 

[Deleted member 323070]

Sounds OK to me.
Don't forget to allow room for the socket over the coach bolt heads, in your countersinking.

 

[Old Salt]

If its bolting to the wall a 2x4 will be sufficient.

 

[johnny2007]

As old salt said, a 2x4 is sufficient, easier to fix, it won't wobble and look better.
Cut the top on an angle sloping away from the wall and treat the cut.
M10 coach bolt well over the top.
6mm screws and good plugs in the middle of bricks will be solid as a rock.
For external applications I put a little bit of grease in the wood hole before the screw, so to slow down water effect.

 

[jj4091]

50mm stainless steel right angle brackets screwed to the wall so that they form a slot rather than sticking outward. That is how I did ours.

 

[aveatry]

I have done similar when I needed to fix to a corner concrete post but was facing a blank side not slotted. I used 6mm stainless steel threaded rod and set in the post with chemical resin. I was weary of using anything that would expand in an iffy position on a concrete post. used 3x2 countersunk for the nut ( and socket ) 6mm was plenty, used 3 on 5foot.

 

[simplesteve]

I had the exact same job as the O.P. to do a couple of months ago. I asked our local timber yard for advice, and ended up with a 4x3 - " they're for fixing to walls" and 100x 22slat. Drilled the hole for the concrete bolt, then the larger hole for the socket, then when done screwed the slat over the top. Hey Presto - a 4x4 on the wall, with no holes !! ( I never knew 4 x 3 posts were ' a thing ' )

 

[robinbanks]

I never knew 4 x 3 posts were ' a thing '

My table saw routinely eyes up 4x4s and reassures me 4x3s are a thing