



 
Hi Carol, Concrete is usually ordered by the cubic yard. (Contractors often use the term yards to mean cubic yards.) You have four footings, two of them 80 feet long by 12 inches wide by 4 inches deep, and two of them 26 feet long by 12 inches wide by 4 inches deep. You can use our volume calculator to calculate the volume in cubic yards of each of the four footings and then add the volumes to see how much concrete you need. Penny  


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