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Gate Pillar footings

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  • 26-06-2009 2:01pm
    #1
    agentsmith
    Registered Users Posts: 82 ✭✭


    Looking at installing two ready made sandstonegate gate pillars and need figure out foundations.

    Planning around a 4:1 ratio with a little water for the two house pillars 26"x26" square (5-6ft tall) and assuming I allow a couple of inches extra each side for support and use a depth of 12". I get following calcs using 28x28x12in=9408cu in = 0.15cu m multiplied by two for the 2 pillars so estimated 3.0 cu m concrete required.

    How many sacks of sand/aggregate/cement would I therfore need buy to mix this volume?


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    #2
    C Eng
    Registered Users Posts: 194 ✭✭C Eng


    I think you better check your calcs again.

    PM me if your having trouble (seriously)


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    #3
    agentsmith
    Registered Users Posts: 82 ✭✭agentsmith


    doh! meant to be 0.15 x 2 = 0.3 m3. How much of each constituent do you think I would need assuming this is now correct.


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    #4
    dp639
    Registered Users Posts: 249 ✭✭dp639


    Where are you getting your sandstone gate pillars from? Can you PM me the details, I'm after limestone pillars so maybe they do these too.

    Thanks in advance.


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    #5
    qc3
    Registered Users Posts: 844 ✭✭✭qc3


    If I were you, Iwould dig your foundation a little bigger.
    A meter square would be a safer option, working out at 0.6 meters of concrete. with things quiet now, most ready mix companies would supply this amount, and maybe 2 layers of steel in each for added strenght.


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