Re: calculation for celcon blocks

Discussion in 'UK DIY' started by Grunff, Apr 17, 2004.

  1. Grunff

    Grunff Guest

    chris wrote:
    > How many would I need for a 18' x 12' shed? Also where is the best
    > place to order? Im trying to avoid Wickes and B & Q.


    I'm not going to tell you how to calculate it - if you can't do that,
    you really shouldn't build a shed. Standard blocks are 18x9x4".

    As far as where to order, phone around all your builders merchants, and
    get the best price. Last time I bought some standard thermalites they
    came out at 65p - that was from Travis Perkins.

    --
    Grunff
     
    Grunff, Apr 17, 2004
    #1
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  2. Grunff

    Andy Wade Guest

    "Grunff" wrote in message
    news:c5rrps$56h3p$-berlin.de...

    > Standard blocks are 18x9x4".


    No, standard blocks are 440 x 215 mm x a variety of thicknesses, of which
    100 mm is the most common. That's the actual block size. Adding 10 mm to
    the width and height (for the mortar joints) gives 450 x 225 mm, which is
    called the 'module size'.

    The area of one module is 0.45 * 0.225 m^2, which is equal, almost exactly,
    to 0.10 m^2. So the calculation is very easy - 10 blocks per square metre
    of wall area, plus an allowance for cutting and wastage.

    The larger Durox blocks seem to be very commonly used now. These are 630 x
    225 mm (module) which works out at a tad over 7 blocks per square metre.

    --
    Andy (IANAQS)
     
    Andy Wade, Apr 18, 2004
    #2
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