Sink posts how deep?
I need to install three 4x4 posts to support grape vines. There'll be some
sort of wire stretched horizontally between the posts, as done at vineyards.
However, I'd prefer NOT to pour cement. Reason: This project could be a
total failure if the deer decide grape vines=salad. They ate my neighbor's
car last week, so anything's possible. So, if I'm using 8 foot posts, should
3 feet under the ground be sufficient?
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