What size auger do you use?
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Thread: What size auger do you use?

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    12dbsinad's Avatar
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    What size auger do you use?

    For setting 4x4 PT posts, what are your opinions on auger size? I've heard 9" and I've heard 12" for better adjustment and less hand digging if you're off. If you're cementing the 12" will clearly take more concrete. What are your thoughts?
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    EVT
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    I have had no issues with the 9 inch auger. Measure twice and you’ll use less cement.
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    I'm with EVT, I use a 9" for 4x4 posts. My biggest issue when digging holes by myself is getting them straight. With my County Line auger, it's easy to dig angled holes if you aren't careful. I guess I've got enough practice and get them pretty straight now.

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    I have both auger sizes: 9 and 12 inches. I set at least 20 4x4’s using the 9 inch auger. This worked perfect in my opinion. I believe it took 3 50-lb bags of quikrete per post. The 12 inch auger is more suited for 6x6 posts or 8” round wood posts. Also, the 9 inch auger seemed to be more efficient at getting the loose dirt out of the hole.

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    Agreed that 9” is best for 4” posts. Getting 6” posts in a 9” hole usually doesn’t work out too well so will use the 12” for that size. I don’t concrete the posts in, just tamp the soil removed from the hole back in around the post. I think the post will rot out faster when set in concrete than without.
    Having a helper to guide you with keeping the auger straight is really helpful. I like to straddle the fenceline with the tractor, that way if your holes are angled to the side it should be close to the same for each hole and easier to get the posts aligned.
    pappa, keane, DeereBoots and 1 others like this.

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    I too say 9"
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    Another vote for 9.
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    12dbsinad's Avatar
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    Thanks for the feedback guys!
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    I use a 9 inch auger on my County Line PHD. But that is all I have, so not much choice. So far, I have not needed anything bigger.

    Dave
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