On Jun 6, 7:50*pm, aquachimp
wrote:
On Jun 6, 4:17*pm, "mo" wrote:

these are concrete posts by the way. they are 9 foot as i have 6 foot posts
and a gravel board - so i might end up putting just over 2 foot underground

the electric post borer is looking more attractive if it will save me a LOT
more time.

The one up there is not electrical. It's 2stroke engine.
And as stated, suitable for soft ground.



i am guessing tho it will just me me a nice snug hole straight down -

Not to fast straight down I hope; When they shoot down like that they
can be a devil of a job to get back out again.

will
the hole be wide enough

No, not a chance.

I forgot to add, what you'll need is ballast, least, I think that's
what it's called in the UK (sand&stones mix, probably 25kg bags; at
least, & @ a bag per post, with cement at say; 5 to 1 ballast-cement
and not too wet.) Also, something like a pickaxe handle (wider at the
base) to pack in the mix around the posts.
I don't think postcrete has enough grittiness for use with concrete
posts. That extra stoniness adds to the working stability.

If you're doing this all on your lonesome and can spread the work over
time, I suggest you put in just one post on day one. Next day, or
there after, it should be well set to help you out a bit. But if
fencing to an existing set structure you wont need to wait.
Using the gravel board in position, locate the position of the next
post and dig it out. No need for measuring tape. Put in the next post,
and check it's plume against the gravel board side, the first post/
existing structure being already set, you can fiddle about pressing
the new post into the GB.
You can even position the fence panels (I'm assuming...) but you'll
need to give them independent support front and back so as their
potential leaning weight do not sway the post to lean out of
alignment. In fact, if you're doing this alone it's worth doing so
because lifting panels to slide into position between the (grooved?)
concrete posts is very difficult on ones own.
Then continue with the others.

or will i need to put a couple of heales near each

I'm unfamiliar with "heales"

other to make it wide enough?