How do I calculate how much concrete I need?

Typically, 1m3 of concrete is made up of 350Kg of cement, 700Kg of sand, 1,200Kg of chippings and 150 Litres of water..

I normally use post hole diggers (6" diameter?) 3 feet deep and ½ a bag of redi-mix per post.

As I recall, a 60# bag of concrete is about .

5cf, so you'd need 3 bags per hole..

How many concrete bags would I need for a 8 ft x 8 ft x 6" slab? 54 x 80lb Concrete bags. How much does it cost to pour a 8'x8' x6" slab? Ready-mix costs approx $277.86.

You need to find out how much fencing you need in linear foot or linear meter and multiply that amount with the fence height pricing you want. For example, if you require 150 linear foot worth of 6 feet high concrete fence. Your material estimate will be 150 x $40 = $6000.

Each hole for the terminal posts must be 8 inches in diameter and 30 inches deep, requiring 0.85 cubic feet of concrete to fill.

CONCRETE CALCULATOR FORMULADetermine how thick you want the concrete.Measure the length and width that you'd like to cover.Multiply the length by the width to determine square footage.Convert the thickness from inches to feet.Multiply the thickness in feet by the square footage to determine cubic feet.More items...•.

Density = mass/volume (ρ=m/V) So, V=m/ρ 50 kg ÷ 1440 kg/m3 = 0.0347 m3 = 1.23 CFT.

With a brief look, a 20x20 area at 6 inches deep, you would need approximately 10.52 tons or 7.41 cubic yards of gravel. Concrete reinforcing is also recommended in high traffic areas and medium to large areas.

12,000 pound two-post lifts (and higher capacity): Six (6) inches of concrete at 3000 PSI is required.

For concrete, the formula for volume is as follows: length x width x thickness. To determine how many bags of concrete you will need, divide the total cubic yards needed by the yield.

Beside above, how much crushed concrete do I need calculator? In the construction world, most materials are measured in cubic yards. Multiply the length (L), in feet, by the width (W), in feet, by the height (H), in feet, and divide by 27. This will tell you how many cubic yards of crushed stone you need.

Concrete blocks are much easier to calculate. Each block is 450 x 215 x 100. Ten blocks will construct approximately 1 square meter of wall, with 1 bag of sand/cement mix enough for 10 blocks.

Calculate the volume of the hole in cubic metres (using V = πr2h) and then subtract the volume of your post. This will give you the volume of concrete required. Simply multiply the volume figure by 108 (108 bags per cubic metre) to give the amount of 20kg bags needed to fill the void.

How many concrete bags would I need for a 5 ft x 5 ft x 6" slab? 20.8 x 80lb Concrete bags.

As to how many bags....a 55 gallon drum filled clear to the top is actually closer to 60 gallons. And 60 gallons is 8 cu ft. So if you buy 60lb bags, those do 1/2 cu ft each so you would need 16 of them. IF you buy 80lb bags (2/3 cu ft) you would need 12 bags.

You will need 45 bags of concrete mix to make a cubic yard of concrete.

How Many Bags of Concrete do you Need?Bag SizePre-mix Bags Needed to Fill1/4 cu yd1/2 cu yd40 lb bags234560 lb bags153080 lb bags1223

How Much Concrete per Vinyl Fence Post?Post SizePost Height (above surface)80lb Bags Required4×43-4ft double-triple rail9 inch hole15×53-4ft double-triple rail12 inch hole15×55-6ft semi & privacy122

For example, a sono tube with a 10" diameter and a 4' depth requires 0.08 cubic yards of concrete..

The depth of the hole should be 1/3-1/4 the post height above ground (i.e., a 6-foot tall would require a hole depth of at least 2 feet).

Plan on at least 5 minutes per cubic yard, for unloading time. How much concrete do I need? Order this much concrete, for these standard pool sizes. 12 x 24 – 5 yards, 14 x 28 – 6 yards, 16 x 32 – 7 yards, 18 x 36 – 8 yards and a 20 x 40 – 9 yards.

Calculate Concrete Volume With the volume of the submerged post and the volume of the hole figured out, subtract the post volume from the hole volume, and you will have the volume of concrete needed for each hole.

Simply multiply that amount times the number of posts to get a total quantity..

Multiply the square footage by the depth in feet to find the volume of the space in cubic feet. Volume is found by measuring length × width × depth. Finally, divide the cubic footage by 27 to find the volume in cubic yards. This is the amount of concrete needed.

Once you know how big the room is and ideally know how many square meters are in it, you can simply divide that figure by 9 to give you about how many bags of multi finish plaster you will need. Multi finish covers 10m2, but I say 9m2 to all allow for wastage.

If there is a layer of water across the top, you've added too much. The rule of thumb is about 5 pounds of water to an 80 pound bag of concrete mix.

Various instructions and regulations therefore also state that you need about 56 packs of dry concrete of 40kg each for 1m³, which results in about 17.86 litres of liquid concrete per pack.

Mortar calculation for tile flooring We need 1.5 m3 volume of wet cement mortar that means, we need this much volume after adding water to cement and sand mix. Dry volume of mortar is considered as 25% of more of wet volume.

To calculate how much concrete you need, you need to know the post size you are going to use and how many posts you are installing. Your post diameter and height determine how big each hole needs to be. As stated above, fence post holes should be 3 times the diameter of your post and 1⁄3 as deep as your post.

Each 80 lb (36.3 kg) bag of QUIKRETE® grout will fill the cores of approximately 3 standard 8" × 8" × 16" (203 × 203 × 406 mm) block.

Here is the quantity that you will need for your slab. Quikrete Concrete Mix: 24- 60lb bags.

How many stamps do I need for my project? Take your dimensions of your project and figure out which direction you will run your stamps. Next measure what your longest run will be. Ideally you want the enough stamps to cover your first row and 2 stamps for the second row.

To determine how many bags of concrete you will need, divide the total cubic yards needed by the yield. Use the following yields per each bag size: 40 pound bag yields .011 cubic yards. 60 pound bag yields .017 cubic yards.

Concrete Slab Prices By SizeSlab SizeSquare FeetAverage Cost Installed15x15225$1,38820x20400$2,46824x24576$3,55420x30600$3,7026 more rows

Apply the Sealant Depending on how porous your concrete is, a gallon of sealer will cover 250 to 500 square feet.

To lay 1000 bricks = 3 bags cement + 0.6 cu. m. sand. 1 Bag of cement to 3 wheelbarrows of building sand.

BUDGET: You can achieve a homemade Venetian plaster finish for roughly $6 to $11 per 100 square feet, considering you'll need $2 to $3 for pre-mixed joint compound, $0.10 to $0.50 for latex colorant, and $4 to $7 for tinted glaze.

They are 4 feet in height and 10 inches in width (diameter), or 4′ x 10″.Choose Round Column (or Round Slab) on the calculator.Enter Height 4 ft (or 48 in)Enter Diameter 10 in.Calculate and the answer is 0.08 cubic yards for one concrete tube.Multiply 0.08 x 50 = 4 total cubic yards of concrete for 50 tubes.More items...

For example, a sono tube with a 10" diameter and a 4' depth requires 0.08 cubic yards of concrete.

Multiply the width, length and depth of your area. Concrete is usually ordered in cubic metres. Here's a conversion guide. There are 1.3 cubic yards in one cubic metre (If you have your requirement in cubic yards, all you need to do is divide by 1.3 to get the cubic metres answer).

How to calculate concrete:Determine how thick you want the concrete.Measure the length and width that you'd like to cover.Multiply the length by the width to determine square footage.Convert the thickness from inches to feet.Multiply the thickness in feet by the square footage to determine cubic feet.More items...•Apr 23, 2018

How do I calculate how much concrete I need for a slab?Measure the area in feet.Multiply length by width, and then by thickness.Divide the resulting number by 27 to find cubic yards.

How do I calculate how much concrete I need for a slab?Measure the area in feet.Multiply length by width, and then by thickness.Divide the resulting number by 27 to find cubic yards..

For a 10 x 10 slab, you would need 77 60-pound bags or 60 80-pound bags. If we add an extra 10%, that's an extra 8 60-pound bags or 6 80-pound bags. Whatever the size of your project, use the formula above to calculate how much concrete you'll need!

1 Cubic Meter of Concrete 1m3 of concrete = 150l water + 250kg cement + 700kg sand + 1200kg aggregates.

For bricklaying you need to mix one part of cement to five parts building sand. It does not matter how you measure a part, be it by weight or by the bucketful, so long as you use the same means of measuring for both sand and cement.

The mixing ratio is 1 part cement and 5 parts sand, and if the plaster is too harsh, 0.5 to 1 part of lime can be added.

50 Bags50 Bags of Cement = 1000 Concrete Blocks..

How Many Bags of Concrete do you Need?Bag SizePre-mix Bags Needed to Fill1/4 cu yd1 cu yd40 lb bags239060 lb bags156080 lb bags1245.

Since 1m³ corresponds to a volume of 1,000l, you therefore calculate 1,000 / 21.

48 rounded bags of ready-mixed concrete of 40 kg each or a total of 1,920kg of ready-mixed concrete per cubic meter are required..