Can any tell me the correct diameter to dig the holes for fence posts? - The run of fence will be 40 feet long using 6ft X 6ft panels - my concern is that the location of the fence usually gets hit quite hard when it is windy and I need it to be stable.
Any help welcome.
2007-10-31 01:20:41 · 19 answers · asked by notfrightenedofghosts 2 in Home & Garden ➔ Do It Yourself (DIY)
Go for 8feet 3x3 post with 2 feet in the ground. 4x4 are to heavy for panels and look out of place. Make sure posts are concreted in.
2007-11-01 07:58:18 · answer #1 · answered by JayJay 2 · 0⤊ 0⤋
After miles of fencing; a standard is often 24 inches; but with concrete added to fill for support. That wouldn't be so difficult over 40 ft. you're only talking about 8 posts; but will have to cut one panel by 2 ft.
Not knowing at all the material/substance of the fence; nor the MPH of these WINDS; nor if the fence is a stand alone or supported at either end by more fence; or by structures; You could certainly purchase longer than usual posts and drop them at 36 inch or 48 inch. That seems a bit of overkill, but again details would be beneficial.
Also without knowing the soil content, or stabilty undisturbed; might have helped. IE: Sand/ Usual Dirt/ etc.
The diameter of the hole need not be much larger than the size of the post; in any case. In fact the less soil YOU disturb; the more stability you'll retain. Certainly that might be near impossible digging in sand.
If wind conditions are that severe I'd probably be considering other issues. If the fence is in fact a Wind Break, then deep posts might help.
Steven Wolf
2007-10-31 01:35:18 · answer #2 · answered by DIY Doc 7 · 0⤊ 0⤋
I had to replace a large section of fence in my yard. The posts were 4x4, and I checked the remaining sections to verify - 4' above ground, 2' below. It has held up fine, but it is a slat fence and not solid panels.
One thing you might consider - buy some powdered quick-crete and pour a little bit into the holes around the posts, then use a hose to spray in a little water and then fill in with dirt on top. This seems to help anchor the posts and give them more stability.
2007-10-31 01:30:23 · answer #3 · answered by granittany 1 · 0⤊ 0⤋
Suggest you remember a two to three inch gap below the panels as this stops rot from developing as quickly as it can and also it enables the wind to escape underneath thus reducing the pressure placed on the panels.
I've found that the eight foot 4''x4'' posts, dug down to the depth of the post that's left after deducting the panels and gap to be sufficient with a house brick on the side where the wind is more likely to blow against covered in water/concrete mix and allowed to dry before covering with soil or preferably gravel.
2007-11-01 02:14:52 · answer #4 · answered by witton ender 2 · 0⤊ 0⤋
Three points which might be helpful. 1) You might decide to leave the wire fence in place to serve as a permanent reference to the boundary position. 2) If you erect another fence as long as it is not along a 'highway' I think you are now allowed a height of 2mtrs which nicely fits a 6ft panel and a 6inch gravel/kick board. 3) You might consider making a special effort to protect/weatherproof the face of the fence that you will not be able to get at once its built.
2016-03-13 09:05:47 · answer #5 · answered by Claire 4 · 0⤊ 0⤋
3x3 Fence Post
2016-11-05 00:14:37 · answer #6 · answered by aldrege 4 · 0⤊ 0⤋
you will need 8 or 9 ft posts (6 above and 2-3 in ground) I'm assuming they are 4x4 in. So you would also need to go out and buy this tool called a "Post Hole Digger" Its a very ingenues invention created many years ago for this very purpose (thus the name). sense you said it takes on a lot of wind you may want to consider putting concrete in the hole with the post (just make sure its plumb).....(plumb means straight up and down...in all directions)....the post not the concrete. then once all is dry and the holes filled back in (yeah you need to put the dirt back in the hole) you attach your sections of fence..... to the posts
2007-10-31 01:36:41 · answer #7 · answered by Sean 3 · 0⤊ 0⤋
hi have done plenty of fences and can i say that it is not the posts you realy have to worry about it is the panels as they bear the brunt of the wind ,in my oppinion you would be better of feather edging in stead of panels as they are sturdy yet flexible
your posts need to go in 2feet and as a guide you should have about 2fists space all round , any good concrete mix will do post mix or 5/1 ballast cement . the bays are usualy 13feet post to post and average 30 panels you will also need cant rails 3 per bay to attach them to nail at top middle bottom and gravel board along bottom for them to sit on this way you can work out what you will need and try and get it localy as may be cheaper as less travel to deliver and also means you dont have to cut panels just shorten the gap if you need to hope this helps need more info just ask
2007-10-31 11:21:40 · answer #8 · answered by corkyboy 1 · 0⤊ 0⤋
Set the post at least 2 feet deep and three would be better. About a foot dia. for a 4 x 4 and fill with concrete.
2007-10-31 09:07:23 · answer #9 · answered by sllde 3 · 0⤊ 0⤋
I would suggest you go for 4" posts (100mm) 8'-9' long (2.4-2.7m). This is more important than the hole size. I would dig the hole 2'-3' deep and 1' round, this will give you a good cantilever in the ground to resist the wind, also ensure you put good fixings between panels and posts.
2007-10-31 01:30:19 · answer #10 · answered by pete 1 · 0⤊ 0⤋