I live in Ontario, Canada, and the requirement for posts/bases is 4-feet deep in the ground, taking the frost line into consideration.
Now I saw this in Google images. I was just wondering if I can do this? Does the ENTIRE ditch need to be at least 4-feet deep? What will happen if the ditch is say, just 1-foot deep? Will the whole thing heave and crack/break during the winter cycle?