Article: This should generally be around six to eight feet apart, depending on the type of fence and the terrain it will be installed upon. Take the time to carefully evaluate their position, as failing to align posts properly will impact the solidity of the overall structure. To ensure a stable fence, plan to set your posts at a depth of 1/3 of their length. This is the depth you'll need to dig your holes. Allow to stand overnight so the wood can become saturated.

What is a summary?
Decide on the posts' spacing. Mark the spaces with stakes. Use a post hole digger to dig holes at each stake marker. Treat the bottom third of the posts with a protective seal to help prevent damage from underground moisture.