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Estimating Concrete-Concrete Calculator PDF Print E-mail
Written by Scott Thomson   
Wednesday, 10 September 2008 05:07

Here Is an Example Foundation Estimate:

You will need to perform a minimum of 4 calculations:

    * Lets Say you have a 40' x 60' building with a 6" slab
    * Perimeter footer is a 12" wide by 12" deep
    * There Are 8
Type A footings that are 3' sq x 1.5' deep

First Step; calculate the slab thickness,

    40' x 60' x .5' = 1,200 cubic feet / 27 cubic feet (per yard) = 44 cubic yards

Step two; calculate the perimeter footing,

    there is 200 l.f. of perimeter x 1' x 1' = 200 cubic feet / 27 cubic feet = 7.4 cubic yards

Step Three; calculate the footing size,

    3' x 3' x 1.5' = 13.5 cubic feet x 8 footings = 108 cubic feet / 27 cubic feet = 4 cubic yards
    (Note: You will need to do this for each footing size)

Step Four; Add The 3 Results Together,

    44 + 7.4 + 4 = 55.4 cu yards of concrete

Note:

This is absolute neat line.  Construction is not a perfect world, and therefore you will need to have extra concrete on hand.  Add a few percent for budgetary purposes and this will get you close.   

Below is a link to a online calculator that will save you time in estimating your yardage.

 



 


Last Updated ( Thursday, 11 September 2008 22:03 )