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.

Answered by: Kobi Date created: Jun 24, 2022

## How much concrete do I need for a 12x20 slab?

Asked By: Claudiu Date created: Jun 23, 2022

Concrete Extras With a brief look, a 12x20 area at 6 inches deep, you would need approximately 6.31 tons or 4.44 cubic yards of gravel. Concrete reinforcing is also recommended in high traffic areas and medium to large areas.

Answered By: Carl G Date created: Jun 25, 2022

## Can I mix concrete in the hole?

Asked By: Matt Ball Date created: Jun 11, 2022

Fill the hole with Fast-Setting Concrete up to 3 to 4 inches below ground level. Pour about a gallon of water per 50 lb bag into the hole and allow the water to saturate the concrete mix. Wait about 4 hours to begin constructing your fence or applying heavy weight to your post.

Answered By: mario Date created: Jun 12, 2022

## How many bags of concrete do I need for a post hole?

Asked By: Setjmp Date created: Jun 20, 2022

Mix two 50lb bags of concrete with water in a mixing tub or 5-gallon bucket. Add concrete into the hole and around the 4” x 4”. Depending on your climate, let concrete set up for 24 - 48 hours.

Answered By: Has QUIT--Anony-Mousse Date created: Jun 23, 2022

## How many bags of concrete do I need for a 6x6 post?

Asked By: Trott Date created: Jun 18, 2022

As I recall, a 60# bag of concrete is about . 5cf, so you'd need 3 bags per hole.

Answered By: cyberwombat Date created: Jun 20, 2022

## How many bags of concrete do I need for a 4x4 post?

Asked By: helloV Date created: Jun 23, 2022

Mix two 50lb bags of concrete with water in a mixing tub or 5-gallon bucket. Add concrete into the hole and around the 4” x 4”. Depending on your climate, let concrete set up for 24 - 48 hours.

Answered By: Jesper Date created: Jun 24, 2022

## Do I need to drill a pilot hole for concrete screws?

Asked By: NathanOliver Date created: Jun 08, 2022

Unlike self-drilling screws which do not need pilot holes due to their drill bit end, self-tapping screws like concrete screws do require the user to mark a spot for the pilot hole.

Answered By: LoLance Date created: Jun 08, 2022

## How much concrete do I need for a 4x4 fence post?

Asked By: Jesse Good Date created: Jun 11, 2022

Also 1-1/2 bags per hole is about right for a 4x4 fence post. Also remember, the depth of the post hole should be one-half of the above-ground post height. (Example: For a 6' above ground post, use a post with an overall height of 9 feet and place 3 feet in the ground).

## How many bags of concrete do I need for a 3 foot post hole?

Asked By: Alasdair Date created: Jun 09, 2022

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

Answered By: vehomzzz Date created: Jun 11, 2022

## How many bags of concrete do I need for a 6x6 post hole?

Asked By: mihai Date created: Jun 13, 2022

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

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

Answered By: Daniel Pryden Date created: Jun 14, 2022

## How many bags of concrete do I need for a 8x8 slab?

Asked By: FDuhen Date created: Jun 13, 2022

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.

Answered By: Kelvin Lawrence Date created: Jun 14, 2022

Professor

### How much concrete do I need for a metal fence post?

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.

Professor

### How many bags of concrete does it take to fill a 2x2x2 hole?

Each hole is 2'x2'x2' which equals 8 cubic feet. You have 2 of these so you need 16 cubic feet of concrete. An 80 lb (36.3 kg) bag of Quikrete yields approximately 0.60 cu ft (17 L). 16 cubic feet / 0.6 cubic feet / per bag = 27 (80#) bags of concrete mix.

Professor

### How much concrete does it take to fill a hole?

If you're not sure what size hole to dig, a rule of thumb is to use a hole diameter 3 times the post diameter and 1⁄3 as deep as the post height. See below for more information. Average is \$115 per yd3, although your price will vary based on the type of concrete, vendor, and location.

Professor

### How much concrete do I need to fill a block wall?

To core fill 200mm blocks allow 0.8m3 of concrete per 100 blocks.

To core fill 200mm 'H' blocks allow 0.84m3 of concrete per 100 blocks.

To core fill 300mm blocks allow 1.1m3 of concrete per 100 blocks.

To core fill 300mm 'H' blocks allow 1.32m3 of concrete per 100 blocks..

Professor

### How much cement do I need for a 20x20 slab?

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.

Professional

### How do I fill a hole in a plaster wall?

To plaster over small holes, first scrape off any old loose plaster with the edge of a scraper or filling knife. Then use a damp paintbrush to wet the hole. This nifty trick helps the filler bond to the surface. Now squeeze some plaster directly into the hole or on to your filling knife.

Professional

### How do you fill a large hole in a concrete block wall?

Set the spray nozzle to its highest pressure. Mix together in a bucket one part Portland cement, three parts sand and enough water to make a stiff patching compound. Fill the hole with the patching compound. Use the corner of a trowel or your finger to pack the compound into the hole, making sure it is completely full.

Professional

### How do you fill holes in plaster walls?

1. Repair the hole in the wall with plaster. Use the handle of your putty knife to tap the edges of your hole down.
2. Apply a second coat of plaster to the hole in the wall. Once the first coat of plaster is dry, give it a light hand sand and dust the surface clean with a rag.

Professional

### Do concrete planters need drainage holes?

How to: Make a Drainage Hole in a Concrete Planter. But to keep that succulent alive, it needs a bed or rocks at the bottom and ideally a drainage hole for excess water. Having a drainage hole is ideal for any type of potted plant, especially houseplants.

Professional

### How do you keep wooden concrete from rotting?

Consider Adding Posts to Concrete From here, you should fill the hole with about 6 inches of gravel. This will prevent rotting by ensuring that the post is kept dry when water makes its way into the soil. Place the post in the gravel, then fill with a batch of cement until it reaches the top of the hole.

User

### How do you make a concrete wall?

Steps

• Measure and outline the space for your wall.
• Dig out the soil to form space for the wall and footer.
• Compact and level out the soil with a tamper tool.
• Pour 6 in (15 cm) of gravel into the hole.
• Place a layer of steel rebar ⅓ of the way up the hole.
• Mix and pour concrete to fill the footer hole.

User

### How do you pour concrete quickly?

Put the post into the hole, level the post and fill the hole with QUIKRETE Fast Setting Concrete Mix within three to four inches from the top of the hole. Pour up to one gallon of water into the hole until is soaks into the QUIKRETE Fast Setting Concrete Mix and allow the concrete to set for 20 to 40 minutes.

User

### How many bags of concrete do I need for a basketball court?

elevenThe recommended hole size is 16 inches in diameter and 48 inches deep. You will need eleven 80-lb bags of concrete for the installation. How much does it cost to install an in ground basketball hoop? On average, installation will cost around \$450.00 for an in-ground system if you have it professionally installed.

User

### How much concrete do I need for 2 post lift?

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

User

### How many bags of concrete do I need for an 8 inch tube?

I used three 80 pound bags of concrete mix to fill all of the 48" length of this 8" diameter tube form and had some concrete left over.

Guest

### How much crushed concrete do I need?

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.

Guest

### How much rapid set concrete do I need?

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.

Guest

### How do you pour concrete into a saw cut slab?

How to re-pour concrete in saw-cut slab? hammer-drill holes sideways into the cut surfaces of the concrete to make holes 3-inch deep for dowels (3/8 rebar that I already have sitting around) remove all loose material from the dirt hole. clean rocks and concrete out of the fill dirt.More items...•Jan 12, 2007

Guest

### How many bags of concrete do I need for a mailbox post?

Pour the dry concrete straight into the hole leaving 3 to 4 inches of space from the top of the hole. In most cases a 50-pound bag of quick-dry concrete should suffice.

Guest

### How much concrete is needed for a fence post?

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..

Guest

### How much concrete do I need to fill a 55 gallon drum?

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.

Guest

### How much concrete do I need for 10 sonotube?

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

Guest

### How much concrete do I need for 6x6 post?

The general rule of thumb when setting a post is that the depth of the post's hole needs to be 1/3 to 1/2 of the actual above-ground height of the post. So, six-foot-high fence posts ideally need to be buried three feet into the ground. The diameter of your post hole should be three times the diameter of your post.

Guest

### How much concrete do I need for a 4 foot sonotube?

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

Guest

### How much concrete do I need for a flagpole?

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).

Guest

### How much concrete do I need for a steel fence post?

Most fence post holes will need between 1 - 4 bags of concrete to securely hold the post in place.

The best way to determine the size of the hole is: Diameter of the hole is 3 times the width of the fence post.

Depth of the hole is one-third to half the above ground height of the fence post..

Guest

### How much concrete do I need for an inground pool?

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.

Guest

### How much concrete do I need for post holes?

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..

Guest

### How much concrete do I need to set a post?

Remember, the depth of the post hole should be one-half of the above-ground post height.

(Example: For a 6 feet above ground post, use a post with an overall height of 9 feet and place 3 feet in the ground).

The calculator will indicate the number of 50 lb.

bags of QUIKRETE® Fast-Setting Concrete you need..

Guest

### How much concrete is in a post hole?

The general rule of thumb when setting a post is that the depth of the post's hole needs to be 1/3 to 1/2 of the actual above-ground height of the post. So, six-foot-high fence posts ideally need to be buried three feet into the ground.

Guest

### Can I use cement to fill hole?

An ideal patch to use for both purposes is hydraulic cement, which expands to fill cracks and holes as it dries.

Remove loose material from the hole in the wall by probing it with the tip of a screwdriver or blade of a putty knife.

Clean the hole and surrounding area with a wire brush..

Guest

### How much plaster do I need for a room?

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.

Guest

### How many bags of concrete do I need for a fence post hole?

1 - 4 bagsMost fence post holes will need between 1 - 4 bags of concrete to securely hold the post in place. The best way to determine the size of the hole is: Diameter of the hole is 3 times the width of the fence post. Depth of the hole is one-third to half the above ground height of the fence post.

Guest

### How do you reinforce concrete posts?

To begin reinforcing the post, dig a few inches of soil away from it around the perimeter. Fill the hole with approximately 6 inches of gravel. Top the gravel with rapid-set cement mix powder to fill the hole to 3 inches below the surface of the soil.

Guest

### How much concrete do I need for basketball hoop?

A hole that's 2 feet long, 2 feet wide and 2 feet deep is 8 cubic feet. Multiply the cubic feet by . 45, if you're using 60-pound bags of concrete, or by . 6, if you're using 80-pound bags.

Guest

### How much concrete do I need for a post hole?

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.

Guest

### How much grout do I need to fill concrete block?

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.

Guest

### How much concrete do I need for fence posts?

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.

Guest

### How do you pour concrete in post holes?

Set the post into the hole and attach 2x4 braces to adjacent sides of the post. Use a level to position the post perfectly vertical. Fill the hole with Fast-Setting Concrete up to 3 to 4 inches below ground level. Pour about a gallon of water per 50 lb bag into the hole and allow the water to saturate the concrete mix.

Guest

### How much concrete do I need for a 20x20 pad?

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

Guest

### How much concrete do I need to fill a 5 gallon bucket?

A five gallon bucket can hold . 45 cubic feet of concrete when mixed with water. In other words, one 60 pound bag of pre-mix or an equivalent Portland Cement/rock and sand mix.

Guest

### How much concrete sealer do I need?

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

Guest

### How do I figure out how much concrete I need for a round hole?

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...

Guest

### How do you cement a post?

Dry Method Instructions:Prepare and wet the hole. Before you begin, you need to dig and prepare the hole. ... Place post into the hole. Place the post into the hole. ... Place concrete into the hole. ... Pour water on top. ... Tamp the mix. ... Mix concrete with water. ... Place mixture into the hole.Aug 19, 2019

Guest

### How do you keep concrete from rotting?

Fill the first three inches up with gravel so the end of the post doesn't come into contact with the dirt. Gravel allows water to drain quickly away from the post and into the soil. Be sure to place the post in the center of the hole. Finally, fill the entire hole up with cement to the top.

Guest

### How much concrete do I need for a 10 sonotube?

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

Guest

### Do concrete piers need footings?

You can also use concrete block to build your own piers, but this requires that you pour a concrete footing at the bottom of the hole for the block to rest on. You then have to fill the cores of the concrete block with steel rods and a concrete mix to make them solid.

Guest

### Do I need anchors for concrete screws?

Concrete screws provide a quick, easy and incredibly strong way to fasten to concrete. And best of all, there's no hammering required or anchor or shield to install. All you do is drill a hole and drive in the screw.

Guest

### Do I need to pre drill for concrete screws?

Each diameter of concrete screw has a specific diameter carbide drill bit that must be used for installation. The 3/16” diameter screw requires a 5/32” hole and the 1/4” requires a 3/16” hole. The hole must be drilled using a hammer drill with a carbide tipped bit meeting ANSI standards.

Guest

### Do you need concrete for vinyl fence posts?

Manufacturers unanimously require vinyl fence posts to be installed into a concrete filled post hole. Setting vinyl posts into concrete provides a consistent footing to ensure the posts will remain inline and true for years to come. Concrete should fill the post hole up to 3-4 inches from the top.