"gray" wrote in message
...
I've got a steep slope that needs 12 inch concrete gravel boards, and
I need 6ft high panels.

The local DIY superstore only stocks 8ft long concrete slotted posts.

That would only leave 1ft in the ground ???

Is this in order, bearing in mind that the post would be concreted in.

Or would I have to dig the hole 2 ft deep and fill in the bottom 1ft
of the hole with concrete. Then post on top, infilled with concrete.
Or would that not be to secure ???

How does everyone else do it ???

TIA


I would think, if you can't get a 9ft post, that your last scenario would be
OK.
Certainly 1 foot of post in 1 foot of concrete sounds too little, but 1 foot
of
post in 2 foot of concrete would be ( sucks finger ) good enough for most
scenarios. As a safeguard , you could try using a strongish concrete mix.
The concrete post will have reinforcing bar running down it, so it will be a
lot
stronger than your concrete base, and the only failure mode I can envisage
is the concrete base splitting under a severe wind load, so that's why I
suggest
a strong mix, and it's no more trouble for you.

Andy.