Regarding this, “how many bags of concrete do I need for a 10×10 slab of 4 inch thick?”, at 4 inches thick, generally you will need 49 bags of 90lb ready mix concrete, 56 bags of 80lb concrete, 74 bags of 60lb concrete or 111 bags of 40lb ready mix concrete for a 10×10 slab.

Also, How many bags of concrete do I need for a 10×12 slab?

The volume of concrete required for a 10- by 10-foot slab depends on the diameter of the slab. For a 4-inch slab, either eight 60-pound or six 80-pound bags are required, while for a 6-inch slab, either 12 60-pound or nine 80-pound bags are necessary.

Hereof, How much area does a 50 lb bag of concrete cover?

Regarding this, how much does a 50 lb bag concrete cover?, as 133 lb concrete = 1 CF, so a bag of 50 lb concrete = 50/133 = 0.375 CF, therefore, a 50 lb bag of concrete approximately cover around 1.5 square feet area upto standard depth of depth of 3 inch for your patio and sidewalk.

Also to know How many yards of concrete do I need for a 10×10 slab? 10 x 10 = 100 square feet. 4 ÷ 12 = .33. 100 x .33 = 33 cubic feet. 33 x .037 = 1.22 cubic yards.

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.

20 Related Questions Answers Found

What’s the difference between a concrete slab and a cement slab?

What is the difference between cement and concrete? Although the terms cement and concrete often are used interchangeably, cement is actually an ingredient of concrete. Concrete is a mixture of aggregates and paste. The aggregates are sand and gravel or crushed stone; the paste is water and portland cement.

How many bags of cement do I need for 1 cubic meter?

One cubic meter of concrete is equal to 1.308 cubic yards of concrete. If there are 5 1/2 bags of cement in 1 cubic yard of concrete, there would be 7.2 bags in 1 cubic meter of concrete. These are the 94 pound bags of portland cement or 42.64 kg bags of cement. Join in and write your own page!

How many bags of cement do I need for 100 square feet?

4 bags ( 401 kg) of cement and 1593 nos bricks are required for 100 square feet 13.5 inch brick wall.

How much area will a 50 lb bag of sand cover?

Regarding this, “50 lb bag of sand cover how much area?”, generally a typical 50 lb bag of sand yields 0.5 cubic feet that will cover 3 square feet area for standard 2 inch depth for excavation and backfills, for 1 inch depth, it will cover 6 square feet, for 3 inch depth, it will cover 2 square feet and for 4 inch …

How do I measure a yard of concrete?


Just follow these steps:

  1. Measure the area in feet.
  2. Multiply length by width, and then by thickness.
  3. Divide the resulting number by 27 to find cubic yards.

How do I calculate how much concrete I need?

Use the formula.

Calculating the volume for concrete requires using three dimensions: length times width (which is area) times the height (thickness) or L x W x H. If you are using feet as your standard unit of measurement, this formula will give you the volume of concrete in cubic feet.

What’s the best mix for concrete?

In terms of the ratio for concrete, it depends on what strength you are trying to achieve, but as a general guide a standard concrete mix would be 1 part cement to 2 parts sand to 4 parts aggregates. For foundations, a mix of 1 part cement to 3 parts sand to 6 parts aggregates can be used.

Can I pour a 2 inch concrete slab?

The minimum thickness for pouring concrete over concrete is 1.5 inches. In most cases, I don’t like to pouring the new concrete less than 2 inches thick. Two inches of concrete (or more) that’s bonded, gives you adequate strength for a wear surface, especially if you’re driving over it.

How strong is 4 inches of concrete?

A concrete patio slab should be at least 4 inches thick and have a compressive strength of 3,000 PSI.

Is gravel needed under concrete?

Whether you pour concrete for a walkway or patio, a strong gravel base is required to prevent the concrete from cracking and shifting. Gravel is especially important in clay soil because it doesn’t drain well, which results in water pooling under the concrete slab and slowly eroding the soil as it finally drains.

How much does a 20×20 stamped concrete patio cost?

Patios cost anywhere from $8 to $28 per square foot when made using stamped concrete. A 12-foot by 12-foot patio costs $1,160 to $4,040, while larger 16-foot by 20-foot patios are

$2,560 to $8,960

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Stamped Concrete Cost Estimator.

Patio Size Total Price
20’x20′
$3,200 – $11,200

How much does it cost to get a slab of concrete poured?

Concrete slabs typically cost about $6 per square foot, or between $4 and $8 per square foot including labor. That’s about $5,400, or between $3,600 and $7,200 for a typical 30- by 30-foot slab that’s 6 inches deep. Materials alone cost about $4 per cubic foot.

Is it OK if it rains after pouring concrete?

Pouring Concrete in Rain. … Pouring concrete in the rain can compromise its strength, increasing the tendency for dusting and scaling to develop. Once the damage is done, it can be hard to rectify and will often ruin the appearance of the finished surface. Don’t let it rain on your parade.

How many 20kg bags of concrete make a cubic meter?

one 20kg bag will cover an area of 1.1m2 to a depth of approximately 10mm. or 108 x 20kg bags equates to one cubic metre of mixed concrete.

How much does 1m3 of concrete cost?

How much is the cost of concrete per m3? The average cost of concrete is anywhere from $200 – $300 per m3 (cubic metre), though you could pay as much as $350 for 40 MPa strength.

How many 25kg bags of ready mix concrete are in a cubic meter?

Regarding this, “How many 25kg bags of concrete in a cubic metre”, as 1 cubic metre concrete = 2136kg, so 25kg bags of concrete = 2136/25 = 86 bags, therefore, approx 86 bags of 25kg concrete in a cubic metre.

How many bags of cement can build a 3 bedroom house?

While for a normal or a medium size of a three bedroom flat it will take around 2700 blocks and 155 bags of cement will be enough to build a 3 bedroom flat.

How many bags of cement do I need per square foot for a slab?

How much cement required for 1 sq. feet area:- using M20 grade of concrete in roof slab casting, 1 sq. feet area of RCC slab require 0.095 bags (4.76kgs) of cement and incase of plastering of wall, it require 0.017bags (0.85kgs) of cement.

How much area will a 25kg bag of cement cover?

As a rule of thumb 1 of our 25kg bags will cover an area of 0.25m to a recommended depth of 50mm.