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How many bags of concrete for 3 slab?

Updated: 9/22/2023
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Q: How many bags of concrete for 3 slab?
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How many 80lbs bags do you need for a 16x14x2 slab?

A two-inch slab is fundamentally unsound because it's not thick enough. So...go with at least a three inch slab. For a 16-foot x 14-foot x 3-inch slab: The slab is 224 square feet. Divide by four and you get 56 cubic feet. Add 10 percent (because the bottom isn't flat) and you come up with 61.6 cubic feet. There are 0.6 cubic feet in an 80-pound bag, so you need 103 bags. Do not do it this way. It will cost you more money and the pour will be weak and look terrible. You need 2-1/2 yards of concrete from a concrete company. If you make the slab 4 inches thick, you will need 3 yards and that's better because concrete companies don't like to deal in half-yard increments.


How much concrete to poor a 2 x 7' x 12' slab?

Use the metric system, it's more practical. Just do width * height * lenght of the area. This will get you something in CM^3. Then just do / 100^3 and you have M^3, the bags of concrete you buy will say how much M^3 you can pour with it.


How many 80 POUND bags of concrete are needed to cover 7 cubic feet?

10 bags will give you 6'2/3", seven bags will give you 11 bags will give you 7'1/3". Each bag is 2/3 cu feet.


How many bags of concrete will you need for 30 ft 30ft 3in thick?

10 80# bags will fill about 6 cubic feet, so 375 bags should fill 225 cubic feet (30 x 30 x 0.25).ANS 2 -At least in my area, it would be much cheaper ordering this to be delivered by a concrete truck.An 80 lb. bag of concrete is 2/3 of a cubic ft. of concrete. 3 bags is 2 cu. ft. So for 225 cu.ft. youll need 338 bags of concrete.


How much concrete would you need for a slab 16x16x4?

At least 3 cubic yards for a 4-inch slab. You'll need 4.75 cubic yards for a 6-inch slab.

Related questions

How many square feet does one pound of concrete cover?

How deep? Are you talking about dry mix weight or finished weight? Concrete weighs 150 pounds per cubic foot. So if you have a 6" slab, that's 150# for 2 square feet. For a 4" slab, the same amount will cover 3 square feet. For a 3" slab, 4 square feet. Concrete mix is commonly sold in 80 pound bags. The finished weight is the mix plus the water that gets chemically bound to it. There's a guide on the bag telling how many bags you need for a given area and thickness.


What concrete ratio for a concrete slab?

1:2:3


Can you install a 3-inch pipe in a horizontal concrete slab?

The pipe usually goes under the slab.


How many 94 pound bags of portland cement needed for a yard of concrete?

Depending on the use of the concrete, between 5-6 bags.


If The plans for a patio call for a slab of concrete 8'12'8thick how many cubic yards of concrete should you order if you allow 10 percent for waste?

3 cu.yds


How many 80lbs bags do you need for a 16x14x2 slab?

A two-inch slab is fundamentally unsound because it's not thick enough. So...go with at least a three inch slab. For a 16-foot x 14-foot x 3-inch slab: The slab is 224 square feet. Divide by four and you get 56 cubic feet. Add 10 percent (because the bottom isn't flat) and you come up with 61.6 cubic feet. There are 0.6 cubic feet in an 80-pound bag, so you need 103 bags. Do not do it this way. It will cost you more money and the pour will be weak and look terrible. You need 2-1/2 yards of concrete from a concrete company. If you make the slab 4 inches thick, you will need 3 yards and that's better because concrete companies don't like to deal in half-yard increments.


How much concrete to poor a 2 x 7' x 12' slab?

Use the metric system, it's more practical. Just do width * height * lenght of the area. This will get you something in CM^3. Then just do / 100^3 and you have M^3, the bags of concrete you buy will say how much M^3 you can pour with it.


What is density of reinforce concrete slab?

Its 2400 kg/m^3 normally.


How many 80 POUND bags of concrete are needed to cover 7 cubic feet?

10 bags will give you 6'2/3", seven bags will give you 11 bags will give you 7'1/3". Each bag is 2/3 cu feet.


How many 60 lb bags of concrete to do pad 3 ft by 3 ft by 4 inches?

8


How much concrete is in one bag of concrete?

Most bags will make a 1/3 of a cubic foot of concrete.


How much does a 3'x3'x8 inch slab of concrete weigh?

2000 pounds