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  1. #1
    Join Date
    Nov. 2, 2001
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    Packing my bags
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    32,716

    Default Need some math help

    Because I can't do it in imperial/standard...and the materials are not sold in metric...

    Problem:
    I need to pave part of my drive, a roughly 12x24 feet patch.

    I want to have pavers on a gravel base.
    I am thinking 4 inches will work fine, the ground is packed like concrete...the vehicle would not be on top as a general rule, but hey, never discount a lazy husband right!

    My round about calculation (turning feet into inches, then centimeters, then meters, the squaring and such)
    left me an approximate needed volume of gravel of 2.6 cubic meters, roughly 3 cubic yards.



  2. #2
    Join Date
    Jan. 26, 2006
    Location
    Fort Worth, Texas
    Posts
    4,547



  3. #3
    Join Date
    Feb. 3, 2000
    Location
    Nokesville, VA
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    35,231

    Default

    working in feet, 12 x 24 / 3 = 96 cubic feet (4 inches = 1/3 foot)

    Converting to cubic yards 96/9 = 10.6666... cubic yards

    1 cubic yard = 0.764554858 cubic meters

    10.666... x 0.764554858 = 8.1552518186666...

    so you need a little over 8 cubic meters.


    I think.
    Janet

    chief feeder and mucker for Music, Spy, Belle and Tiara. Someone else is now feeding and mucking for Chief and Brain (both foxhunting now).



  4. #4
    Join Date
    Dec. 27, 2006
    Location
    Western NY
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    1,742

    Default

    Quote Originally Posted by Janet View Post
    working in feet, 12 x 24 / 3 = 96 cubic feet (4 inches = 1/3 foot)

    Converting to cubic yards 96/9 = 10.6666... cubic yards

    1 cubic yard = 0.764554858 cubic meters

    10.666... x 0.764554858 = 8.1552518186666...

    so you need a little over 8 cubic meters.


    I think.
    Almost, but 1 cubic yard = 27 cubic feet (1 square yard = 9 square feet)

    So 96/27 = 3.56 cubic yards

    3.56 x 0.764554858 = 2.721815294 cubic meters


    Christa



  5. #5
    Join Date
    Feb. 3, 2000
    Location
    Nokesville, VA
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    35,231

    Default

    Yes, you are right.

    Brain fart.
    Janet

    chief feeder and mucker for Music, Spy, Belle and Tiara. Someone else is now feeding and mucking for Chief and Brain (both foxhunting now).



  6. #6
    Join Date
    Nov. 2, 2001
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    Default

    thanks!

    A project I'll need to get to this spring...



  7. #7
    Join Date
    Mar. 3, 2007
    Location
    North-Central IL
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    3,842

    Default

    If you want it in tons my calculator says it's 6.4 ;-) That's how we do it here
    Quarry Rat



  8. #8
    Join Date
    Nov. 2, 2001
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    Default

    Quote Originally Posted by Mosey_2003 View Post
    If you want it in tons my calculator says it's 6.4 ;-) That's how we do it here
    6 tons? ouch....




  9. #9
    Join Date
    Jan. 7, 2009
    Location
    New Zealand
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    211

    Default

    You could ring the gravel man and ask him how much you'd need, and how much it would cost -

    Worked for me, lol.



  10. #10
    Join Date
    Mar. 3, 2007
    Location
    North-Central IL
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    Default

    You'd be surprised how SMALL volume-wise a ton of rock/sand is. A ton sounds like, well, a ton but it's not actually that much
    Quarry Rat



  11. #11
    Join Date
    Feb. 28, 2006
    Location
    The rocky part of KY
    Posts
    9,488

    Default

    We bought huge rip rap for a creek bank project and if I remember right each trailer load was between 9 and 11 tons. Bought us between 9 and 11 really big rocks. But on the good side, you're only paying fractions of a penny per pound!

    Our excavator operator said that money in the bank (creek bank, it was a very bad pun) is well worth it.
    Courageous Weenie Eventer Wannabe
    Incredible Invisible



  12. #12
    Join Date
    Mar. 3, 2007
    Location
    North-Central IL
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    3,842

    Default

    It's amazing to think that the semi trailers you see going down the road routinely haul up to 25 tons of aggregate in them, the volume vs. weight is really deceiving. Six tons of sand or fine aggregate like you'd put under pavers would just about fill one of the very small dump trucks, the kind that are like a decent-sized pickup truck with a little dump bed in the back. For some odd reason our company won't find me a material calculator that puts it into cubic feet or yards; I suppose because we price by the ton.
    Quarry Rat



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