On 20/08/2012 16:36, Martin Bonner wrote:
On Monday, 20 August 2012 15:49:58 UTC+1, Nightjar wrote:
On 20/08/2012 15:46, ss wrote:

Putting in 2 fence posts, one should be ok, the other is next to the
house. I have managed to dig down about a foot and appear to have hit
concrete, its about 6 inches out from the house wall so could be the
footings. Do I have any other options if I cant get below this concrete?
Would a wider hole be sufficient, I was ideally trying to get a minimum
of 18 inches depth. The posts are 4x4 inches, and gate will be approx 6
feet high.

If I need a post next to an existing wall, I normally bolt the post to
the wall.

Absolutely! Much easier than digging a hole.

Also, 18" doesn't sound deep enough to me.

http://www.avsfencing.co.uk/retail/p...g/fence-posts/ suggest that a 1800mm (6 foot) panel requires the post to go in 760mm (2' 6"); that sounds much more reasonable.

I've always worked on 1/3 below ground and 2/3 above i.e. a 9ft post for
a 6ft fence.

Colin Bignell