I was looking at the Materials list and it indicates that you need 46 80lb bags of concrete.

What is the recommended minimum thickness be...a 3" thicks slab from my calculations would be 26 80lb bags...

does anyone know of a way to calculate the number of bags required I am not sure my calcs are correct.

What is the recommended minimum thickness be...a 3" thicks slab from my calculations would be 26 80lb bags...

does anyone know of a way to calculate the number of bags required I am not sure my calcs are correct.

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