The 60lb bags of Concrete in a Slab calculator computes the number of 60 pound bags of concrete needed for a rectangle (square) slab, footer, sidewalk, driveway or curb.
INSTRUCTIONS: Choose units and enter the following:
60 pound bags of Concrete (nb): The calculator returns the number of 60lb bags needed for the slab. It also returns the volume of concrete in cubic yards, and the length of the form boards needed.
Theis approximately 0.45 ft3. This calculator computes the in cubic feet and then divides by the .
`nb = (L*W*D) / (0.45 ft^3)`
Note: this is a random survey of concrete prices on the Internet. The most common prices are found on the websites of major DIY retailers including Home Depot, Lowe's and Menards.