Estimating ConcreteConcrete Calculator 
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 ) 