Nightjar wrote:
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.

That is IMHO the correct depth.

--
Adam