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Log cabin base but restricted access

Discussion in 'Building' started by markyyyyyy, 1 Feb 2020.

  1. markyyyyyy

    markyyyyyy

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    Hi,

    I have just bought a small 2 bed terraced house with a garden big enough to put my log cabin in (for work).

    Please see attached the photo of how the garden looks now. The raised section at the back is decking but it looks like it has been there a long time!

    Access to the back garden is via a small footpath at the sides of the houses, so i am not going to be able to get any tonne bags dropped off to get the base sorted out etc.

    What would the best way be to provide a good base for my log cabin to be built on? (i have ordered it from tuin) The log cabin is 3m x 3m

    I was going to remove the decking - will soil be under decking or is it likely to be concrete ?

    Would you use a timber frame, concrete base etc?

    Thanks
     

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  3. IT Minion

    IT Minion

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    How wide is a small footpath these days?

    You don't have to have a poured concrete base for posh sheds. The other popular approach is to have concrete pads at corners and a wooden frame between them.

    Decking can hide anything, the only way to know what's there is to take it up.
     
  4. markyyyyyy

    markyyyyyy

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    The footpath is probably about 70--80 cm wide. By concrete pads do you mean breeze blocks? Would i still dig down and then put the block in to make sure that the timber is just above ground level? Do you literally sit the concrete blocks on the ground that is there, or do you have to concrete them in to ground?
     
  5. markyyyyyy

    markyyyyyy

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    i've done more research and think a timber frame is best.
    Can someone confirm that what i plan is correct?

    1. Remove all of decking
    2. Set out rough area of log cabin perimeter and mark out
    3. Dig post holes on the inner corners of log cabin
    4. Install 5x5" timber posts into the ground with postcrete, making sure all 4 corner posts level up - are 5x5 fence posts strong enough to support log cabin?
    5. Once posts and concrete has set, i can then affix 6x2 timber to the timber posts and then using joist hangers i can provide support across the framework.
    Would you double up (laminate) the 6x2 joists around the perimeter?

    Also, would you put a dpm on the ground, effectively between the floor and below the timber? I'm assuming no excavation is required apart from the hole posts, due to the gap between base / ground and bottom of joists?
    .
    Do i seem to be thinking along the right lines. This will negate the access issue as timber can just be carried through!

    cheers
     
  6. scbk

    scbk

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    The access isn't really an issue, I could get my digger and power barrow in there no problem.

    If it was me I would probably look at setting it on either concrete blocks or slabs. You need the floor of the new shed/summerhouse there to know where to put the blocks. It will need support in the middle too
     
  7. Jo443

    Jo443

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    If you are going to put posts at the corners maybe you should think about setting them on metal post supports set in concrete. This will stop them rotting.
     
  8. markyyyyyy

    markyyyyyy

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    Would you just sit the blocks directly on the surface, or would you dig down a bit and put some hardcore under the block?

    I was planning on doing the edges first (ensuring that the first logs of the cabin are resting on the doubled up 6x2 on the outside of the frame. once happy i would then build the floor using the 6x2 joist providing support to the square framework.

    Cheers
     
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