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  1. #1
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    El Gibbon's Avatar
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    Stupid Question? Not if you don't know

    We are considering building our own house. I've always like the idea of the Thai style of house that Hillbilly built on his resort.

    The first question I have; what is the maximum span normally used for wooden posts/poles and is there a difference using cement posts? I'm thinking that 4 meters is more convenient than 3 as the majority of spaces will exceed 9 sq. meters.

    The house will contain no cement, as envisioned. Just fooling with the design currently so nothing is out of the question.

    E. G.
    "If you can't stand the answer --
    Don't ask the question!"

  2. #2
    Tonguin for a beer
    Bung's Avatar
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    My house is all wood on cement posts and beams. wooden floors have been bricked into the cement beams. all the spans are 3 metres and I took one end (our bedroom) out to 4 metres. They put a post at 3 and then another at 4 metres which is a pain as I now have a cement post in my bedroom! I am sure you can have 4 metre spans, you would just need to use bigger beams.

    I would recommend cement beams and posts. It is just that much stronger and no (or less) chance of it warping. That said I am sure you would be ok with wood if it gets done right. Watch out for termites! my yard is riddled with them but the wont go over concrete to get at your house
    Fahn Cahn's

  3. #3
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    Quote Originally Posted by Bung View Post
    M Watch out for termites! my yard is riddled with them but the wont go over concrete to get at your house
    They will go under the concrete..just wait.

    Thai are only able to build spans of 5 meters and less i think, any longer than that and you'd find half the village at your building site, telling you , you have broken the laws of physics or something.


  4. #4
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    don't they have laminated beams in thailand?

  5. #5
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    we have used concrete beams to span 7 metres, but they have to be about 50cm deep and filled with chunky irons. If you want to use only wood, as we originally did, you can span approx. 5 metres, but the wood has to be fairly massive. Those laminated beams have not yet arrived, but I don't like the look of them.

    FF would recommend steel beams for large spans, but they can be expensive compared to concrete.

    as for whether you can use concrete or wooden posts, no difference really, as long as either are the correct dimension to support the weight, not the span. We have recently bought some teak tree trunks, about 50cm across, which would support most wooden houses!
    I have reported your post

  6. #6
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    Quote Originally Posted by DrAndy
    as for whether you can use concrete or wooden posts, no difference really, as long as either are the correct dimension to support the weight, not the span.
    Yep for the posts all your interested in is the compressive strength so there aint much differance which you use.

  7. #7
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    blackgang's Avatar
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    Gluelam beams are some strong bastards but I ain't sure how long they would last in termite country, I never noticed in Mexico, but I know with wood rafters and purlins that there was a steady stream of sawdust falling all the time as the tremites ate your roof structure.

  8. #8
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    strangely enough you can treat wood to deter termites and other wood-eaters

    seems to be a good idea!

  9. #9
    ding ding ding
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    Quote Originally Posted by DrAndy
    strangely enough you can treat wood to deter termites and other wood-eaters
    Yep I know of a Swedish company building pre-fab houses in Isaan from imported spruce that is CCA (copper chrome arsenic)treated to be termite resistant.
    Those houses are great, if you get a divorce you just unbolt the thing and put it on a truck and away you go!

  10. #10
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    Quote Originally Posted by Helicopter
    Those houses are great, if you get a divorce you just unbolt the thing and put it on a truck and away you go!
    Just make sure the missus is out first...

  11. #11
    Northern Hermit
    friscofrankie's Avatar
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    ^^things are damned expensive for what you get.
    last time I checked they were askig 600k fr a 6 X 8 box with a tiny loft no bathroom of kitchen facilities Just a wooden box, coupla windows.

  12. #12
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    Quote Originally Posted by Helicopter View Post
    Quote Originally Posted by DrAndy
    strangely enough you can treat wood to deter termites and other wood-eaters
    Yep I know of a Swedish company building pre-fab houses in Isaan from imported spruce that is CCA (copper chrome arsenic)treated to be termite resistant.
    Those houses are great, if you get a divorce you just unbolt the thing and put it on a truck and away you go!
    Do they perchance have a web site??

  13. #13
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    Quote Originally Posted by phunphin View Post
    Quote Originally Posted by Helicopter View Post
    Quote Originally Posted by DrAndy
    strangely enough you can treat wood to deter termites and other wood-eaters
    Yep I know of a Swedish company building pre-fab houses in Isaan from imported spruce that is CCA (copper chrome arsenic)treated to be termite resistant.
    Those houses are great, if you get a divorce you just unbolt the thing and put it on a truck and away you go!
    Do they perchance have a web site??
    I would be interested in the web site as well

  14. #14
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    a. boozer's Avatar
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    And me!

  15. #15
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    I dont think there is one, the only place I know of that soaks wood in arsenic is Aussie land, would they allow it here? gonna be difficult I reckon.

  16. #16
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    I think they import the wood already treated DD

  17. #17
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    The import is what I was refering to, hell you can buy arsenic here no problem from any hardware store, but Aussie land is the only place I know of that soaks the wood in arsenic.

    Really doubt if a first world country would do this like Sweden, third world countries like Thailand are too dumb, and second world countries like Aussie land just dont know what to do

  18. #18
    Member Curious George's Avatar
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    Quote Originally Posted by Bung View Post
    Watch out for termites! my yard is riddled with them but the wont go over concrete to get at your house
    Please don't be misled into thinking that termites will not cross concrete. It is very common for subterranean types to build soil tunnels up the side of a concrete foundation to the wood structure.



    The outside of the foundation needs to be chemically treated as a barrier to deter these little munchers. There are some nontoxic plant derived resins that will block termites from travelling up the foundation, assuming the foundation is solid without cracks.
    Geo

  19. #19
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    Quote Originally Posted by Helicopter
    Yep I know of a Swedish company building pre-fab houses in Isaan from imported spruce that is CCA (copper chrome arsenic)treated to be termite resistant.
    Wouldn't happen to have a contact number or link?

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