Greenhouse base

Discussion in 'Greenhouse Growing' started by Sargan, Apr 1, 2011.

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  1. ARMANDII

    ARMANDII Low Flying Administrator Staff Member

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    That sounds okay, Sargan. How are you anchoring the base down as a matter of interest?:D
     
    ARMANDII, Apr 17, 2011
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  2. Sargan

    Sargan Gardener

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    Probably fix by bolting angle brackets to bottom fixing bolts of some of the vertical bars.
    Then fix then to plinth by using stainless steel pan head self tappers into plugged holes.

    BTW stainless steel pan head self tappers .. having a perfectly flat face are much better outdoor fixing than most screws .... when I built my house they were used for guttering, downpipes, fascia brackets etc.
    Better holding power than wood screws due to parallel thread and very deep thread form.

    They hold perfect into wood or a wall plug.

    AS this will be stainless against aluminium , I will probably put a nylon washer under the head to prevent galvanic activity.
     
    Sargan, Apr 18, 2011
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  3. ARMANDII

    ARMANDII Low Flying Administrator Staff Member

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    That sounds substantial enough to solve the problem of wind strain.:thumbsup::D
     
    ARMANDII, Apr 18, 2011
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  4. kev25v6

    kev25v6 Gardener

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    Make sure it is perfectly square or the glass wont fit properly.Mine is slightly out and the glass only just sits on the runners.
     
    kev25v6, Apr 20, 2011
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  5. ARMANDII

    ARMANDII Low Flying Administrator Staff Member

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    Yes, Kev, but it makes life exciting doesn't it:heehee::loll:
     
    ARMANDII, Apr 20, 2011
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  6. Makka-Bakka

    Makka-Bakka Gardener

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    .

    Because my greenhouse gets no sun for part of the winter as it is shaded by the houses on the southside I had to raise it when putting it up!

    I placed concrete blocks on their sides, then treated 4 by 3 timber fixed to the blocks and as my alu house also had a lip, I then used three quarter by one treated timber on top of the other timber, this made it east to have a correct fit, and the greenhouse is easier fixed to wood than to brick or concrete blocks!

    Happy growing!
     
    Makka-Bakka, Apr 23, 2011
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  7. davemw0mwl

    davemw0mwl Apprentice Gardener

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    Hello Sargan, I think what I would do is to lay a course of bricks down and set your frame on these at least it would be secure, but don't forget to anchor the frame to the brickwork, let me know how you get on with it?
     
    davemw0mwl, Apr 30, 2011
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  8. ARMANDII

    ARMANDII Low Flying Administrator Staff Member

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    Sargan, just make sure the Greenhouse is properly bolted/anchored into the ground so wind pressure doesn't flip it over. The pressure from even a reasonable breeze can put a lot of foot pound force onto the sides of any Greenhouse [which isn't exactly aerodynamic:D]. Good luck with it:thumbsup::hapfeet:
     
    ARMANDII, Apr 30, 2011
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  9. Sargan

    Sargan Gardener

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    Job is completed .... what I used was 910 x 150 x 50 pre-cast concrete rear kerbs, laid like bricks this gave me neat flat edge for fitting frame profile, with benefit of 150mm extra headroom.

    Frame is fixed with 10 x angle straps each bolted to frame and screwed into plinth

    There is a pic of plinth at: http://tinyurl.com/63sxtfp


    frame erected: http://tinyurl.com/6y7c2we

    glazing complete: http://tinyurl.com/6gntx5r
     
    Sargan, Apr 30, 2011
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  10. shiney

    shiney President, Grumpy Old Men's Club Staff Member

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    Whoops!! I've only just read through the whole thread and was going to suggest kerbs :DOH:.

    I'm totally useless at DIY but when I put my cedar greenhouse together it came with kerbs to sit the greenhouse on and then bolt it.

    I don't know whether they still do it that way but it appears so from this link and might be of assistance to someone else.

    My greenhouse is still standing OK on it after 35 years. :dbgrtmb:

    Alton cedar greenhouses 25% off Sale
     
    shiney, Apr 30, 2011
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  11. Hex_2011

    Hex_2011 Gardener

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    My greenhouse doesn`t fit into the non-aerodynamic catagory. It doesn`t have any flat surfaces to catch the wind :)
     
    Hex_2011, Apr 30, 2011
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  12. ARMANDII

    ARMANDII Low Flying Administrator Staff Member

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    Now that, Hex, is asking for the Gods to intervene:hapfeet::heehee:
     
    ARMANDII, May 1, 2011
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  13. Hex_2011

    Hex_2011 Gardener

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    Aye, nowt like tempting fate :D
    I`m not too worried about the gods, the greenhouse is bolted to a 1.5 ton concrete ring foundation :dbgrtmb:
     
    Hex_2011, May 2, 2011
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