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Concrete Posts

karlitob · 2020-06-25 16:56:38

Hi all I’m installing concrete h posts and wooden fences over 150ft. Post Length: I’m getting caught up in knots as to the length and depth required. I want 2.1m above ground (1.8m fence and .3m gravel board) but I’ll stuck on whether to get a 2.7m or 3m. I know that 2.7m is the norm with .6m underground, but I wondered…

Comments

#32 12-08-2020 8:36am
rampantbunny

Registered Users Posts: 907 ✭✭✭

Join Date: September 2007

Posts: 787
karlitob wrote: »

Thanks for this. Sorry I missed it earlier.
Am I right in saying that your suggesting put down a 2x4 on edge to fill up the space somewhat underneath the board
Or is it to put a 2x4 on edge about 6inches from the fence and have that as your mowing strip. I can then backfill with concrete - or whatever.

2 x 4 away from fence, not under boards
Far enough away so that lawnmover won't scrape fence posts

Far enough away to give you some room for decorative pebble as in your pic (or other)

Far enough away so that the slope from top of 2x4 to underside of concrete board is not so severe that the pebbles just spill onto your lawn

The 2x4 is to give you a nice straight edge parallel to the fence. A wavy/crooked line will take away from what looks like a very neat fence so far. A secondary function is to use it as a lawnmower strip by embedding the timber in the lawn. Obvioulsy, embedding timber to approx same height as lawn soil means mower wheel can drive along it and your grass at edge will be cut at same height as rest of lawn.
BUT, personally I'd prefer to minimize the slope back to the fence even if that meant raising the 2x4 above lawn surface - therefore prob wouldn't use 2x4 as it would be too shallow. I'd either go with sleepers on edge, or the contemporary white wall (https://images.app.goo.gl/t5aAgrn1MWgk48AW9). I've planned something like this to hide some RC wall at my place so it would fit in with what I have. You have a bit of thinking to do to decide what look you want to go for and how to implement.

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