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Fencing - how deep in the ground do I go?

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  • Apr 12th, 2020 10:04 pm
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[OP]
Sr. Member
Jan 22, 2012
576 posts
207 upvotes
Bradford

Fencing - how deep in the ground do I go?

Just so I’m clear, if I want a 6 foot fence, then people use a 4x4x10’ and put it 42” in the ground? I’m in Ontario.
Last edited by Topher86 on Apr 2nd, 2020 8:36 pm, edited 1 time in total.
Reason: Title edit
12 replies
Deal Addict
Dec 17, 2007
2364 posts
1335 upvotes
Alliston, ON
If your in Ottawa, I'd go deeper. Get 12ft 6x6 and put them at minimum 60" in the ground... The frost can get pretty deep in Ottawa.
[OP]
Sr. Member
Jan 22, 2012
576 posts
207 upvotes
Bradford
Not in Ottawa anymore. Just north of GTA.

My plan is a 48” hole. Gravel in the bottom. Then post and fence n post concrete.
Deal Addict
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Feb 10, 2006
3417 posts
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Topher86 wrote: Not in Ottawa anymore. Just north of GTA.

My plan is a 48” hole. Gravel in the bottom. Then post and fence n post concrete.
4 ft should suffice, as that is the depth I dug for my posts in Oshawa.
Sr. Member
May 29, 2012
525 posts
189 upvotes
Southern Ontario
I remember somebody telling me when I built mine it should be 1/3 of the post in the ground at least.
I can attest that more might be worth it if using 4x4s. I used those and my fence although 1/3 deep does wobble more than i would like, 6x6 is sturdier option
[OP]
Sr. Member
Jan 22, 2012
576 posts
207 upvotes
Bradford
Is it ok to set posts now or is it too cold?
Deal Expert
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Jun 12, 2007
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London
5X5 or 6X6 post as 4X4 tends to split/ twist
Deal Addict
Dec 17, 2007
2364 posts
1335 upvotes
Alliston, ON
Topher86 wrote: Is it ok to set posts now or is it too cold?
Frost is out of the ground around the GTA, so yes
[OP]
Sr. Member
Jan 22, 2012
576 posts
207 upvotes
Bradford
Thank you very much for the info.

What nails would you recommend to put up the fence boards? I have a coil and framing nailer.
[OP]
Sr. Member
Jan 22, 2012
576 posts
207 upvotes
Bradford
Or should I be using #8 1- 1/2 deck screws?
Deal Fanatic
Nov 21, 2013
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4 feet should be ok. Do not forget to have underground wires located by utility company before digging.
Deal Expert
User avatar
Jun 12, 2007
16185 posts
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London
Topher86 wrote: Or should I be using #8 1- 1/2 deck screws?
If you use screws and are doing a big fence/ lots of fence boards , make sure you have a heavy duty/ prosumer / brushless impact driver. I helped a buddy who was using Dewalt XR max impact drivers and after a couple of hours ( 400 screws / hour ?) , they were so hot that you had to wear gloves - couldn't hold them with your bare hands

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