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How many 80 pound bags of concrete mix are needed to pour a 12' x 18' slab?

129


How many bags of concrete for 8x8 slab?

18 bags (80 pounds) of quikrete for a 4 inch thick slab.


How many yards of concrete in a 16x20x4 slab?

3.95 cubic yards of cement are needed for a slab that size.


How many bags of concrete to pour a 4 inch slab 8' x 10'?

20


How many bags of portland cement to make 15x20 slab?

A 15' x 20' x 4" slab needs at least 3.7 cubic yards.


How many yards of concrete is needed for an 8'x8'x6 deep slab slab?

1.19 Cubic Yards


How do you calculate how many bags of concrete for a 11x11 slab?

To calculate the number of bags of concrete needed for an 11x11 slab, first determine the volume of the slab by multiplying its length, width, and thickness (in feet). For example, if the slab is 4 inches thick, convert that to feet (4 inches = 0.33 feet) and calculate the volume: 11 ft x 11 ft x 0.33 ft = 40.13 cubic feet. Next, convert cubic feet to cubic yards (1 cubic yard = 27 cubic feet), which gives you approximately 1.48 cubic yards. Finally, if each bag of concrete covers about 0.5 cubic feet, divide the total volume by the coverage per bag to find the number of bags needed: 40.13 / 0.5 = about 81 bags.


How many yards of concrete is needed for a building slab 6 inches thick?

You need to specify the slab's width and the length as well.


How much concrete would be needed for a slab 24'x10'x4?

You will need 3.1 cubic yards or 139 80lb bags. This assumes a waste of about 5% which is typical.


How many cubic yards of concrete is needed for a building slab 6 inches thick?

You need to specify the slab's width and the length as well.


HOW MANY square yards of concrete is needed for a 10'x8' slab?

8 square yards


How many yards of concrete is needed for a slab 48x31x6?

You will need 27.6 cubic yards of cement.