So our garden fence basically failed several months back when there were quite strong winds. The fence would be replaced with concrete posts instead of current timber ones. There is already a concrete post with a slot we can use at the end of the garden (facing direction of our fence), assuming a corner post which is being used by other neighbours fence on other end.
What's the minimum post depth below ground a post should be set at?
The current concrete one present from the ground up (exposed part) is ~1900mm. Assuming it is a 2440mm one.
Also how much fence post concrete should one approximately need per hole? 1 bag and a half?
Finally in terms of tools, would a post hole digger or post auger be more beneficial? Don't really want to buy/invest in both given it's a one off project to just dig 4 post holes and they aren't relatively cheap. Or any tips on doing without but keeping the hole smallish.
What's the minimum post depth below ground a post should be set at?
The current concrete one present from the ground up (exposed part) is ~1900mm. Assuming it is a 2440mm one.
Also how much fence post concrete should one approximately need per hole? 1 bag and a half?
Finally in terms of tools, would a post hole digger or post auger be more beneficial? Don't really want to buy/invest in both given it's a one off project to just dig 4 post holes and they aren't relatively cheap. Or any tips on doing without but keeping the hole smallish.

