How much does it cost to pour 30×40 concrete?

Cost of 30×40 Concrete Slab

The average cost to pour a 30×40 concrete slab that is 6” thick with metal rebar reinforcements is between $8,196 and $12,384. This cost is based on a general purpose use such as a garage, whereas a foundation for a structure may cost more.

How much does it cost to pour a 2000 sq ft concrete slab?

Concrete costs between $4.25 and $6.25 per square foot and the average size of a house is about 2,000 square feet. That can mean between $8,500 and $12,500 for concrete alone. Labor typically costs around $2.60 per square foot, which is about $5,200 for a 2,000-square foot house.

Is it cheaper to build on a concrete slab?

Concrete Slab Pros

Costs less to build – Homes with slab foundations, on average, cost about $10,000 less to build.

How many yards of concrete do I need for a 24×24 x4 slab?

7.11 yards
For example, for a concrete slab that is 24′ X 24′ X 4”, simply enter 4 in the Thickness/Depth field, 24 in the Width field, and 24 in the Length field. Click “Calculate”. Your answer should be 7.11 yards. Note: The Concrete Volume Calculator can also be used to determine yardage for aggregate products.

How much does a 24×30 concrete slab cost?

A 24×30-foot slab covers 720 square feet. With an average price of $6 per square foot, you may pay about $4,320 for a slab foundation. However, the price can range from $4 to $8 per square foot, resulting in a total cost between $2,880 and $5,760.

How many yards of concrete do I need for a 10×10 slab?

1.3 cubic yards
The amount you will need for a 10 x 10 slab is 1.3 cubic yards, we always add an extra 10% to allow for any slab depth variations or spills that may occur.

How many bags of concrete do I need for a 10×10 slab 4 inches thick?

The thickness of your 10′ x 10′ slab will determine just how many bags you need. The average thickness of a 10′ x 10′ concrete slab for a shed is 4 inches thick. At 4″ thick, your 10 x 10 slab will take 56 bags of concrete that weigh 80 lbs.

How many square feet is a yard of concrete 4 inches thick?

81 square feet
One Cubic Yard of Concrete: 4-inches thick – covers 81 square feet.

How many 80lb bags of concrete make a yard?

45 bag
One 80lbs bag of Quikrete Concrete Mix will yield approximately . 60 cu ft. So it will take 45 bag to equal one cubic yard of concrete.

How many bags of concrete do I need for a 10×8 slab?

Regarding this, “how many bags of concrete do I need for a 10×8 slab?”, at 4 inches thick, generally you will need approximately either 58 bags of 60lb or 45 bags of 80lb of premixed concrete for a 10×8 slab, at 5 inches thick slab, either 73 bags of 60lb or 56 bags of 80lb premixed concrete are required, while at 6 …

How much concrete is needed for a 12×12 slab?

Regarding this, “how much concrete do I need for a 12×12 slab?”, at 4 inches thick, generally you will need approximately 1.76 cubic yards or 47.52 cubic feet or 1.35 m3 (either 104 bags of 60lb or 80 bags of 80lb) of premixed concrete for a 12×12 slab, at 5 inches thick slab, 2.22 cubic yards or 59.90 cubic feet or …

How much area does a 40 lb bag of concrete cover?

Regarding this, how much does a 40 lb bag concrete cover, as 133 lb concrete = 1 CF, so a bag of 40 lb concrete = 40/133 = 0.30 CF, therefore, a 40 lb bag concrete approximately cover around 1.8 square feet area upto depth of 3 inch.

How thick does a concrete slab need to be?

Standard concrete floor slab thickness in residential construction is 4 inches. Five to six inches is recommended if the concrete will receive occasional heavy loads, such as motor homes or garbage trucks. To prepare the base, cut the ground level to the proper depth to allow for the slab thickness.

How many bags of concrete do I need for a 10×10 slab 6 inches thick?

At 6 inch thick, for a 10×10 slab, you will need either 111- 60- pounds or 84- 80- pounds or 168- 40- pounds bags of concrete. Thus, either 111- 60lb or 84- 80lb or 168- 40lb bags of concrete will be required for a 10×10 slab at 6″ thick.

How thick should a concrete patio be?

Four inches
Four inches is the minimum thickness for a concrete patio. You’ll want to make it six to eight inches thick if the patio will support a structure such as a gazebo or hot tub.

Do you have to put rebar in concrete?

This strength is crucial for things like buildings, roads and driveways. Rebar is not necessary for every concrete project. The general rule of thumb is that if you are pouring concrete that is more than 5 inches in depth, you are probably going to want to add in some rebar to help reinforce the entire structure.

Is 4 inches of concrete enough?

For a concrete patio, the ideal slab thickness is at least four inches. There are times where thicker slabs will make more sense, but, most of the time, 4 inches is the perfect thickness for a concrete slab. It is, however, wise to make the perimeter of the slab an inch or two thicker.

How big can a concrete slab be without expansion joints?

Rule #1 – Keep joints as square as possible. Rule #2 – In order to prevent intermediate cracking, space joints (in feet) no more than 2 – 3 times the slab thickness (in inches).

Can you pour concrete over dirt?

Long story short, yes you can pour concrete over dirt.

Which is better rebar or wire mesh?

Considering the support constraint, rebar is undoubtedly stronger than wire mesh. Several constructors consider rebar for domestic jobs. For thicker driveways and locations that involve greater traffic, rebar is always a good option to consider.

Do you need rebar for 4 inch slab?

The thickness of rebar should be no more than 1/8 that of the slab, so a 4” slab shouldn’t have steel greater than #4 or 1/2″ bar. It’s best to check with a Structural Engineer if your slab will bridge or cantilever. What is this? For 4” concrete slabs used for driveways and patios, #3 rebar is common.

Do I need plastic under my concrete slab?