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  1. #1
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    Concrete post + barbed wire fence

    Looking for advice - I want to put a simple fence around a block of land, mainly just to mark the boundaries, but also to stop casual wandering around. Concrete posts with barbed wire appears to be the simplest. On such a fence do only corner posts need to be cemented in the ground (each side is about 25-30 metres long)? About how much a metre would it cost to get it done?

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    Surely number 8 or 11 wire is cheaper than barbed wire? I don't see the need for barbed wire if it's main purpose is simple demarcation. Barbed wire is more difficult to install, and if you think about the old adage "locks only stop honest people", ordinary wire will stop most people and barbed wire won't deter a determined trespasser.

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    Good point. But will normal or barbed wire best keep cows from knocking down the fence? I will have some young trees on the block so don't want them chewed up! I would prefer normal wire, but not being a cow-man suspect that they have more respect for barbed wire.

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    Quote Originally Posted by Codesh View Post
    Good point. But will normal or barbed wire best keep cows from knocking down the fence?
    Ahh...cows! You've introduced another element.
    In my experience, barbed wire won't stop a determind bovine unless you've used fence strainers and 6 or 7 strands of barbed wire....unless the cows are already taught that fences are no-go zones, in which case 3 strands of #8 do the job.
    So, if you're keeping in or out untrained cattle, barbed wire, but pulled very tight, and 6 or 7 strands to a 1.2 m fence. A randy bull may jump that, but for most containment purposes, it should be ok.

    Thus, if using tightly pulled barbed wire, you need your corner posts not just dug deep, but braced in each direction also. Vital. Intermediate posts are only for vertical support and don't need much digging down at all. It's all about the strainers and corners.

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    And just so you know, Codesh, there's a jerk on TD that likes to give negative reputation points. The rep system is supposed to be used to show approval or non-approval of posts, but Luigi uses it as a weapon against newbies he can bully, or people he's insecure about (sad little man). He's given me negative rep for the above post.
    I'm sure he'll green you now, just to be contrary

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    Quote Originally Posted by Maanaam View Post
    Ahh...cows! You've introduced another element.
    In my experience, barbed wire won't stop a determind bovine unless you've used fence strainers and 6 or 7 strands of barbed wire....unless the cows are already taught that fences are no-go zones, in which case 3 strands of #8 do the job.
    So, if you're keeping in or out untrained cattle, barbed wire, but pulled very tight, and 6 or 7 strands to a 1.2 m fence. A randy bull may jump that, but for most containment purposes, it should be ok.

    Thus, if using tightly pulled barbed wire, you need your corner posts not just dug deep, but braced in each direction also. Vital. Intermediate posts are only for vertical support and don't need much digging down at all. It's all about the strainers and corners.
    Absolutely right. We did the same around our place and then planted things, mostly plants, which made it look a lot less like Stalag 52. Well, I lie, she planted the things called plants. I watched.

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    Quote Originally Posted by Codesh View Post
    Looking for advice - I want to put a simple fence around a block of land, mainly just to mark the boundaries, but also to stop casual wandering around. Concrete posts with barbed wire appears to be the simplest. On such a fence do only corner posts need to be cemented in the ground (each side is about 25-30 metres long)? About how much a metre would it cost to get it done?
    I just had the same issue in rural Isan. I sourced the concrete posts from the village. For 2m posts with a footing and four nails to fix the wire we were quoted B120 per post and settled on B110, delivered. We checked around, the prices were the same.

    We were originally asked for B100 per post to install them by one of the local casual labourers. In the end we dealt with our neighbour, who had his own fence as something we could look at. He is older than I but he did a good job single-handed and charged us about B80 per post. He used no extra concrete for the corners, instead he put in 2 stays on each corner post and one stay on each gatepost. At his suggestion we added two stays on the middle post down each long side, a run of about 70m.

    The neighbour's price included fitting the wire. Four strands all around. We bought standard Global House barbed-wire. Nothing is really buffalo proof, but we wanted to make a point to the local cowherd. It can easily be softened with some planting. But then the cows will eat that....

    We asked the village post-maker to make stays, same as the posts but with a 45-degree slope at the top to butt against the upright. He was happy to do that, although the locals seem just to use the same posts as stays.

    We discussed spacing with the neighbour. Many local fences seem to have posts every 2m. The gf is not one to give money away, she wanted to do 3m. We settled at 2.5m.

    The neighbour did a grand job. He gave us four straight and level sides, adding some scrap rubber loops on the gateposts and four heavy bamboo poles to make a gate.

    Short answer to your question: Our finished cost was about B22,000 for a little under 250m. (Posts and stays 10K, building 8K, wire 4k)

    All figures are approximate because I am taking out what I think is the cost of the 'spare' posts and wire now sitting on the gf's garden, ready to make her new fence. Remarkably, just about the right number of posts she needs.

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    A cow that decides to scratch itself against your posts can easily knock over any post that is not concreted in ! Corner posts and the gate posts will need deeper foundation and strainers, would not hurt to do the same in the middle of each fence too. Depending on where you are, the posts should cost around 125 baht each,you will probably need about 40, barbed wire costs around 700 baht/100m for the cheaper stuff. Around 300(?) for ordinary galvanised wire.
    Last edited by mikenot; 12-09-2018 at 06:07 PM.

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    Thanks Manaam - all useful information - and thanks for warning too!

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    Thanks Shutree. Perfect info for my needs!

  11. #11
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    We installed barbed wire fencing, but I am thinking of adding additional fencing on the ground level to keep out the neighbor's dogs and chickens.

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    Quote Originally Posted by Shutree View Post
    He used no extra concrete for the corners, instead he put in 2 stays on each corner post
    No concrete at all, just pounded soil? Even the 45 degree stays? How did he fix the top of the stays to the vertical posts, to stop them sliding up when the wire is tensioned?

    Quote Originally Posted by mikenot View Post
    any post that is not concreted in
    Your suggesting concrete at every post then?

    Quote Originally Posted by runker View Post
    but I am thinking of adding additional fencing on the ground level to keep out the neighbor's dogs and chickens.
    A mesh, plastic or wire and of what height? Around here black plastic roll is used, just draped over the wire.

    I ask as I recently planted some more young durian trees. I didn't particularly want to fence it but "something" is breaking the young trees. The neighbours cocks use the two older trees lower branches as perches so I am assuming it's them. Also dogs wander through.

    A JPPR2 thread similar to his Bamboo ladder thread would be useful for me.

    http://teakdoor.com/living-in-thaila...oo-ladder.html (The Bamboo Ladder....)
    Last edited by OhOh; 17-09-2018 at 09:57 PM.
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  13. #13
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    Quote Originally Posted by OhOh View Post
    No concrete at all, just pounded soil? Even the 45 degree stays?
    Why not? Do you think the tens of thousands of kilometers of fencing in Australia is anything but pounded earth?
    When I was fencing, I would pound fist-sized rocks into the hole around the post and then soil. Sturdy as anything.
    If you dig deep enough and pound the surrounding fill-in soil, concrete is not needed.

  14. #14
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    Why not to use a net fencing available in many dimensions? Obviously not much more expensive than the barbed wire (5x, 6x?) wrapped around the lot.

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    Thanks for you info.

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    Quote Originally Posted by OhOh View Post


    Your suggesting concrete at every post then?
    l (The Bamboo Ladder....)
    No, but I would do it for the corner posts and their stays, and any stayed intermediate posts. If the wire inbetween is tensioned properly the other posts will not be able to move (much). It's the corner posts that the cows will probably blunder into......stupid f...ing animals, one of the corner posts on our land was broken by somebody's cow trying to take a short cut. Previous landowner built a combo low block wall/barbed wire fence but did not stay the corners so that post snapped at the level of top row of blocks, now propped up with a log and wrapped in barbed wire to stop anything rubbing against it again.

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    You can get decent quality used post very cheap.

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    I paid 6,000 baht for a ~40m fence made of concrete posts and barbed wire. Think a Thai would have been charged a little less. All posts were cemented in but only the end/corner posts had a substantial cement base.

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    Quote Originally Posted by Maanaam View Post
    In my experience, barbed wire won't stop a determind bovine unless you've used fence strainers and 6 or 7 strands of barbed wire....unless the cows are already taught that fences are no-go zones, in which case 3 strands of #8 do the job.
    So, if you're keeping in or out untrained cattle, barbed wire, but pulled very tight, and 6 or 7 strands to a 1.2 m fence. A randy bull may jump that, but for most containment purposes, it should be ok.
    if you decide on simple wire, tie strands of shopping bag plastic every 10m or so. Local/Thai cows know what that means

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