What diameter hole for a 6x6x14ft post?

7 Answers

Relevance
  • 6 months ago

    At least, 6 X 6.

    • Login to reply the answers
  • 6 months ago

    The minimum diameter of a hole for a 6x6 square post is at least 8.5 inches. How much room you might need for other things would depend upon how you plan to use it, among other things.

    • Login to reply the answers
  • 6 months ago

    standard post hole digger size is fine. you don't want the hole too big bewcause then it will require two sacks of cement mix instead of only one

    • Login to reply the answers
  • 6 months ago

    Fence, 8" with sand fill. Pole barn 18" with concrete fill.

    • Login to reply the answers
  • How do you think about the answers? You can sign in to vote the answer.
  • roger
    Lv 7
    6 months ago

    9 inches will do it. Better to use a 10" auger...

    • Login to reply the answers
  • 6 months ago

    The diameter does not matter. what matters is, the diameter and thickness of the concrete pad in the bottom of the hole, that will be supporting the load that the post will be supporting... Is it a deck? A room addition? Or just a fence? The more of a load, the thicker and wider the concrete needs to be. Your local building dept will have specific information regarding this. For a fence post, I would be more concerned with lateral movement, put the concrete around the sides of the post

    • Login to reply the answers
  • 6 months ago

    The diameter of the hole should be 3 times the post so it needs to be 18 inches.

    • Login to reply the answers
Still have questions? Get your answers by asking now.