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Thread: 1.1oz or 1.9oz

  1. #1
    Senior Member gunn parker's Avatar
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    1.1oz or 1.9oz

    Hi
    I have looked but cannot find the formula to work out the weight of my ripstop.
    I know we gave talked about it before but a search turns up empty.
    Does anyone know it or can point me to it.
    Thanks
    Gunn
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  2. #2
    Senior Member hangnout's Avatar
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    I am sure the math whiz's will chime in with the correct math but I will attempt to answer. I measure the material by the inch to keep it as accurate as possible when trying to find the weight per square yard. One square yard is 1296".


    (Width" X Length")/1296"=total Square Yards
    Total Weight/Total Square Yards= Weight per square yard
    Last edited by hangnout; 04-18-2008 at 06:43.

  3. #3
    Senior Member gunn parker's Avatar
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    Hi thanks for that, I'll write it down someplace this time
    You wont believe this though, I had a section of rip stop and it was full roll width at 62" and 21" long. then I weighed it at 1.9 oz and I thought, oh it is 1.9 oz rip stop but then I was measuring a rectangle. it was not until I used your math that I find my rectangle is in fact a square yard, and so it is 1.9oz.
    weird.
    Gunn
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  4. #4
    GrizzlyAdams's Avatar
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    square yard

    while I would be one some might think would carry around the exact number of square inches per square yard in my head, exactly the opposite is true. What I remember is how to derive the stuff the I need.

    To compute the square yardage of a piece, given width and length,
    on a calculator I would
    1. enter width (in inches)
    2. hit * key
    3. enter length (in inches)
    4. hit / (divides) key
    5. enter 36
    6. hit / key
    7. enter 36
    8. hit = key

    Since I know there are geeks out there who use postfix notation (a.k.a. reverse Polish) and will chime in if I don't ( ) if I had such a calculator sequence would be

    width
    length
    36
    36
    *
    /
    *

    It's kinda like German, you wait until the end of the sentence before popping in the verbs...

    Grizz

  5. #5
    Senior Member gunn parker's Avatar
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    Hi
    So my ripstop works out at 1.9oz, would anyone care to guess at the weight the completed hammock would hold?
    Thanks
    Rivers know this: there is no hurry. We shall get there some day.
    Winnie the Pooh

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    Proud member since May 2007

  6. #6
    New Member Brandon's Avatar
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    what's the prize if I get it right?

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