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Q: How many yards of concrete in a 30 x 40 slab?
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How many yards of concrete in a 20ft by 30 ft slab 5 inches thick?

9.3 cubic yards of cement is required for this slab.


How many yards of concrete needed for 24' X 30' X 4 slab?

11.852 cubic yards


How many yards of concrete it will take to pour a concrete slab that is 30 ft x 10 ft x 4 inches thick?

3.70 yards and you will order 4 yards to have enough. (30 x 10 x 1/3) = 100 cubic feet Divided by 27 = 3.704 cubic yards


How many yards of concrete in a 24 x 30 slab?

Assuming a thickness of four inches and allowing about 5% waste, you would need 9.33 cubic yards or about 419 80lb bags.


How many yards of concrete do you need for slab that is 40'x40'x6?

40 x 40 x 1/2 = 800 cubic feet. Divide 800 by 27 (27 cubic feet per yard) = approximately 29.6 yards.. round that up to 30 cubic yards of concrete.


How many yards of concrete fo a slab 30x30x4 thick?

If the units are 30 ft x 30 ft x 4 inches, then you have 30 x 30 x 0.33 ft = 300 cubic feet300 cubic ft/27 cu yds/cu ft = 11.1 cubic yards


How many yards of cement does it take for a 3 inch slab 30 feet by 10 feet?

About 3.


How many yards of concrete is required to cover 30 feet long by 20 feet wide?

30' x 20' (600 square feet) = 66.6 square yards.


How much does a 10' x 30' x 4 slab of concrete weigh?

10-ft x 30-ft x 4-in = 100 cubic ft.That slab weighs 3.7 times as much as 1 "yard" of concrete. (rounded)


How much concrete is needed for a slab 30 square feet by 6 inches thick?

2.15


How many yards of cement needed for a 40 x 60 slab?

This depends on the slab thickness required in your area. A six-inch slab would give this calculation: 13.3 yd x 20 yd x 1/6 yd = about 45 cubic yards. Single story residences on stable compacted ground are allowed to be as thin as 4 inches in many areas, which would require only 30 cubic yards.


Calculate the number of cubic yards of concrete needed for the cellar floor in a 30 ft x 40 ft house using accurate methods The slab is 3 in thick Show all work?

1 cubic yard = 27 cubic ft3 inches = 0.25 footThe volume of the slab is (30 x 40 x 0.25) = 300 cubic ft= (300 / 27) = [ 11 and 1/9th ] cubic yards = 11.111 (rounded, repeating)