Best answer
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.
How many bags of concrete do I need for a post hole?
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.
Do I need to cement fence posts?
Concrete is the most secure material for setting fence posts, especially if you have sandy soil. Gravel may be okay with dense, clay-heavy soil, but in looser soil, concrete is the only thing that will truly keep your fence posts stuck in place.
How many bags of concrete do I need for a 6x6 post?
As I recall, a 60# bag of concrete is about . 5cf, so you'd need 3 bags per hole.
How much concrete do I need for a deck post?
One 80-lb bag of concrete yields . 60 cubic feet when combined with 4 quarts of water. If you're purchasing 80-lb bags of concrete, you'll need 1.66 bags of concrete. As before, since bags of concrete are only sold in whole quantities, you'll need to purchase two (2) 60-lb.
Do you put concrete inside vinyl fence post?
Concrete is the foundation of the fence. Using concrete in the foundation point will allow consistency for all of the vinyl fence posts. The ground is always settling and moving. Having concrete as the foundation of your vinyl fence posts creates a firm base that won't move and minimizes the posts moving.
How deep should a concrete fence post be in the ground?
Concrete fence posts must be fixed into the ground in the traditional way: by digging a hole. When concreting fence posts into the ground, the posts should be buried a minimum of 600mm deep. The recommended depth for a 1.80m or 6 foot high fence is 760mm or 2' 6".
How much concrete do I need for a 4x4 fence post?
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?
I normally use post hole diggers (6" diameter?) 3 feet deep and ½ a bag of redi-mix per post.
How many bags of concrete do I need for a 6x6 post hole?
As I recall, a 60# bag of concrete is about .
5cf, so you'd need 3 bags per hole..
How many bags of concrete do I need for a 8x8 slab?
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.
Related Question Answers

shree.pat18
ProfessorHow do you calculate concrete for a fence?
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.

EricSchaefer
ProfessorHow much concrete do I need to set a deck post?
One 60-lb bag of concrete gives you . 45 cubic feet of concrete when mixed with 2.5 quarts of water. In order to have enough concrete for 1 cubic yard (27 cubic feet), you'll require 2.2 bags of 60-lb concrete.

Pressie
ProfessorHow many bags of concrete do I need per fence post?
two bagsOur example post will require two bags for every post if you're using fast-setting concrete. Fast-setting concrete is ideal for installing fence posts since it doesn't need to be mixed in a bucket or a wheelbarrow.

baptiste
ProfessorHow 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.

dww
ProfessorHow long should concrete cure for fence posts?
Give it time when dry setting the fence posts Like a good wine, a dry setting concrete will take time to set fully. A quick setting product may not be the best one, and the standard setting time is around four hours. Make sure the post is plumb at all times during the process.

whites11
ProfessionalDo I need concrete for mailbox post?
No concrete needed. Bury an empty 6 or 8 inch tube two feet deep, and flush with the ground. Compact the soil around it. Then center and level your mailbox within the tube, and fill around the post with sand.

Paul Kulchenko
ProfessionalHow much concrete do I need for a mailbox post?
In most cases a 50-pound bag of quick-dry concrete should suffice. Saturate the concrete. For a 50-pound bag you will need about a gallon of water. Be sure to leave support beams in place for 4 to 6 hours or until concrete is dry.

Doug Sillars
ProfessionalHow 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.

Rohan Singh
ProfessionalHow 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..

CBroe
ProfessionalHow deep do concrete fence posts need to be?
600mmConcrete fence posts must be fixed into the ground in the traditional way: by digging a hole. When concreting fence posts into the ground, the posts should be buried a minimum of 600mm deep. The recommended depth for a 1.80m or 6 foot high fence is 760mm or 2' 6".

Dr. Jan-Philip Gehrcke
UserHow do you cement a vinyl fence post?
Not All Cement Is Created Equal – Don't Pour Until You Are SureDig and prepare the holes in advance.Line the bottom with pea gravel.Set the post straight in the hole.Pour the dry setting cement.Give it time when dry setting fence posts.

Thomas Orozco
UserDo you have to use concrete for mailbox post?
Make sure your desired mailbox post meets Federal Highway administration recommendations: a stable post that can bend or fall to the side if hit by a car. Avoid unyielding supports such as metal or concrete posts, and instead use a 4 x 4-inch wooden support or a 2-inch diameter standard steel or aluminum pipe.

Maroun
UserHow many bags of concrete do I need for a vinyl fence post?
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

gold_cy
UserHow 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.

quest49
UserHow 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.

Ionuț G. Stan
GuestHow 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..

Ben
GuestHow 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).

Sam Saffron
GuestHow 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..

JenB
GuestHow 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.

Levi Fuller
GuestHow 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..

bdonlan
GuestHow 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..

Chinmay Kanchi
GuestHow 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.

rraphael
GuestHow thick of concrete do you need for a 2-post lift?
4 inchesHere are our tips for making sure your installation is an uplifting experience.
Some of manufacturers standards for a 2-Post and 4-Post Lifts require a minimum 4 inches of reinforced concrete slab to be safely installed..

user6123723
GuestHow 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.

pptaszni
GuestHow much cement do I need for a mailbox post?
In most cases a 50-pound bag of quick-dry concrete should suffice. Saturate the concrete. For a 50-pound bag you will need about a gallon of water. Be sure to leave support beams in place for 4 to 6 hours or until concrete is dry.

Jonathan Wood
GuestHow deep should a concrete fence post be?
600mmConcrete fence posts must be fixed into the ground in the traditional way: by digging a hole.
When concreting fence posts into the ground, the posts should be buried a minimum of 600mm deep.
The recommended depth for a 1.80m or 6 foot high fence is 760mm or 2' 6"..

Benjamin Crouzier
GuestHow long does concrete fence post last?
25-yearConcrete fence posts require no after-sale treatment and require minimal upkeep for the duration of their 25-year lifespan. The main challenge is to ensure water does not get into the post's foundations, as this freeze and expand, loosening the fence post.

Rick supports Monica
GuestHow many bags of concrete do I need for a chain link fence post?
A 40-pound bag of concrete mix makes 0.3 cubic feet, 60-pound bags make 0.45 cubic feet and 80-pound bags make 0.6 cubic feet. For the example given, 56 of the 40-pound bags, 37 of the 60-pound bags or 28 of the 80-pound bags will be needed for the fence installation.

simbabque
GuestHow 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.

David M
GuestHow much concrete is in a fence hole?
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).

Jan Nielsen
GuestWhat kind of concrete should I use for fence posts?
Fast-setting concrete is ideal for installing fence posts since it doesn't need to be mixed in a bucket or a wheelbarrow. Once you've finished digging your post holes, add about three to four inches of gravel into the bottom and compact it using a post or a 2x4.

bishop
GuestHow 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.

ydaetskcoR
GuestCan you mix concrete in post hole?
Instead of filling in the top of the hole with soil that could hold moisture at the base of your fence post, add a little more concrete to divert rainwater away from the post and protect it from rot at ground level. You'll need just a bucket or wheelbarrow to mix the concrete and a trowel to smooth it in place.

TomAugspurger
GuestHow 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

Sergei Panfilov
GuestHow do I keep my fence post straight when concrete is set?
Setting the Post You need to level it in two directions with a 4-foot level. After getting it straight in the first direction, hold one of the braces against the post and drive a single screw to connect the brace to the post. You can then level and brace the post in the other direction and begin filling the hole.

Kevin Burke
GuestHow do you repair a fence post with concrete Spurs?
How to Fix a Wobbly Fence with a Concrete Repair SpurDig a hole for the spur. First you need to make some space for your new spur. ... Make adjustments. ... Measure twice, drill once. ... Secure your spur! ... Marvel in your solid fence.Feb 9, 2018

Macmade
GuestHow do you repair wooden gravel boards to concrete posts?
The quickest and easiest way of fixing gravel boards to timber fence posts is to use timber “cleats”. These are small pieces of pressure treated batten that are screwed to the fence post and the gravel board is then screwed to the cleat.

Klas Mellbourn
GuestHow do you replace a concrete fence post?
Dig a hole around 1 side of the fence post. With a shovel, break into the ground surrounding the fence post's concrete base. Keep digging until you create a half-circle gap between the ground and concrete. If possible, dig a hole that is as deep as the concrete itself, giving the post as much wiggle room as possible.

tybro0103
GuestHow do you stop fence panels moving in concrete posts?
Fitting these fencing clips is easy – simply press them flat and slide them into the gap. They will expand again to take up the gap between the fence panel and concrete post. As I found, larger panels really do need six clips each, to prevent the panel from being buffeted and the spring clips working themselves out.

Sibi
GuestHow do you straighten a concrete fence post without removing it?
The Fix-A-Fence SolutionStep 1 – Prepare the Site. ... Step 2 – Prepare the Fix-a-Fence Kit. ... Step 3 – Position the Bracket in the Hole. ... Step 4 – Mix a 60lb Bag of Concrete. ... Step 5 – Fill the Hole with Concrete. ... Step 6 – Take a Break While the Concrete Cures. ... Step 7 – Reposition the Fence Post and Attach the Bracket.

Dave Syer
GuestHow long do concrete fence post last?
around 20 yearsConcrete is a durable building material and can last for around 20 years with minimal maintenance. Sounds promising doesn't it? Surprisingly, concrete isn't immune to wear and tear. Excessive wind and rain can cause concrete posts to chip and crack.

apsillers
GuestHow long do concrete posts take to set?
How long does concrete take to set in a post hole? We would advise waiting at least four hours before any weight or pressure is applied to the posts or fence holes. For best results, you should wait at least 24 hours before you continue hole and fence construction.

Senior Web Engineer
GuestWhat is the best concrete to use for fence posts?
Fast-setting concrete is ideal for installing fence posts since it doesn't need to be mixed in a bucket or a wheelbarrow.
Once you've finished digging your post holes, add about three to four inches of gravel into the bottom and compact it using a post or a 2x4..

Keith Smiley
GuestWhat kind of cement do you use for fence posts?
Fast-setting concrete is ideal for installing fence posts since it doesn't need to be mixed in a bucket or a wheelbarrow. Once you've finished digging your post holes, add about three to four inches of gravel into the bottom and compact it using a post or a 2x4.

rici
GuestHow 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.

Kayce Basques
GuestAre concrete fence posts best?
Robust and sturdy: Concrete fence posts are much sturdier than timber, so you'll have peace of mind knowing that your fence is well supported and the post will still be standing after a strong wind or storm. This makes concrete posts ideal for exposed areas.

Domenic
GuestAre concrete fence posts better than wood?
Robust and sturdy: Concrete fence posts are much sturdier than timber, so you'll have peace of mind knowing that your fence is well supported and the post will still be standing after a strong wind or storm. This makes concrete posts ideal for exposed areas.

Michał Miszczyszyn
GuestCan concrete fence posts be repaired?
Temporarily remove wooden panel, break away all loose/flaky post material, build a wooden mould around each post to replicate original profile, fill with fresh concrete, leave to set. ... Then coat each post to reduce/prevent future frost damage.

Ohgodwhy
GuestCan I extend concrete fence posts?
Extending the height of your fencing can be done in one of two ways. Simply slide the oversized panels into the existing concrete posts and then slot the post extension inbetween the panels onto the concrete post. ...

SudoPlz
GuestDo 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.