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I am about to install a chain link fence between my deck and pool. My pool has a 4 inch slab of concrete and I have about 5" between the deck and the start of the concrete. The chain link fence will just fit between the two.

It will be near impossible to dig a hole in that small of a space. This fence will be a 4' fence, low grade, as it's more to act as a visual buffer between the deck and the pool for our young daughter (the entire backyard is enclosed in a 6ft vinyl privacy fence.

So my question is, what is the minimum height I should drive the posts to make them sturdy - and would it help to attach the posts to the side of the concrete pad with U brackets?

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If you haven't done so already, it may be worth calling the local building inspector, as some localities have very particular requirements for fences around pools. –  Vebjorn Ljosa Aug 27 '12 at 11:45

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up vote 5 down vote accepted

I understand that it would be difficult to dig holes for a concrete footing for your posts. Depending where you are located and the soil types, you could drive the posts in and still have a stable fence. If you are in an area with frost in the ground, I would encourage you to set them at least 3 feet deep if the soil is stable and compacted. The basic rule of thumb is to bury at least a third of the posts, but half the length is even better if you can do it.

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