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padstone size doesn't seem standard

Discussion in 'Building' started by rdt222, 23 Mar 2016.

  1. rdt222

    rdt222

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    Hi,
    so i am pricing up a job so i know roughly what it will cost and i've used this document http://www.mendip.gov.uk/CHttpHandler.ashx?id=1666&p=0 which gives beam size and padstone required for typical applications.

    The trouble is every builders merchant i've rung only does a 440x215x102 padstone, which isn't even the same size as what is quoted for the second biggest size (450x225x100) and as i am looking at a ~3m span it says 600x225x100 which i have not yet come close to finding.

    Is the document just overkill on the padstone?

    The rsj is going to sit on brickwall either end. It's a 1950's brick and is pretty strong (need an sds to drill it). Can i use a smaller padstone and put some engineering bricks in as well?
     
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  3. r1flyguy

    r1flyguy

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    Just make one!

    It's really easy to construct out of some ply board and you will probably find it will be half the cost if not less than buying one from a builders yard
     
  4. rdt222

    rdt222

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    is that allowed? i have no problem making one as long as it will pass any regs.
    thanks
     
  5. tony1851

    tony1851

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    Those figures are complete nonsense; for typical domestic loading, the padstones would be much smaller. Really, they should be calculated by an SE.
     
  6. tony1851

    tony1851

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    Making one yourself out of concrete is not generally good practice, as the compressive strength is unknown.

    We often use cut-down lengths of pre-cast concrete lintel, or even engineering bricks in hard mortar.
     
  7. rdt222

    rdt222

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    ah ok. maybe have to bite the bullet and speak to a SE. Although thinking about it i might have a look at my brothers house as that is currently being built and has much bigger spans with the same size beam so whatever they used there must be ok in a smaller application. It would be a lot cheaper for the smaller pads as i can get them locally as the above sizes i would have to be specially ordered.


    thanks
     
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