Table of Contents
A: Finding the right amount of concrete depends on the size of the hole and the size of the post. The diameter of the hole should equal about three times the diameter of the post and the depth of the hole should be about ⅓ to ½ the total length of the pole.
How many bags of quikrete do I need for a post hole?
1 – 4 bags of concrete per fence post are typically what’s needed. This depends on the type of soil, fence design, height, post size and bag weight. In general the depth of the post’s hole needs to be 1/3 to 1/2 of the above ground height of the post.
How do you calculate concrete for a round hole?
To find cubic metres needed to fill a round hole EXAMPLE: How much concrete is needed to fill 5 holes 1200mm deep and 1050mm round? ANSWER: One hole takes 1.039 cubic metres, therefore 5 holes = 5 x 1.039 = 5.195. ( say 5.2 cubic metres) NOTE: When the Diameter of a hole is doubled, it takes 4 times more concrete.
Is 2 feet deep enough for fence posts?
2 feet is the minimum depth that you should dig your fence post holes for. To dig the holes one-third to one-half of the post’s aboveground height, is a general formula. The deeper you dig the holes, the more stability your fence has.
How big of a hole do I need for a 4×4 post?
The diameter of your post hole should be three times the diameter of your post. So, if you’re planning on using a four-inch round or 4×4-inch square post, your post hole will need to be 12 inches in diameter. For a six-foot-high fence post, we would need a hole that’s 36 inches deep and 12 inches in diameter.
How much post mix do I need per post?
How much Post Mix do I need for a fence post? The exact amount of Post Mix Concrete needed will vary depending on the width and depth of the hole, but as a general rule you’ll need about one and a third bags for a standard fence post.
How many yards of concrete do I need for a 24×24 slab?
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 many square feet does a 50 lb bag of quikrete 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.
Can you put dry concrete in a post hole?
Fast-setting concrete is ideal for setting posts because there’s no mixing—you simply pour the dry concrete from the bag right into the hole, then add water.
Is 18 inches deep enough for a fence post?
The general rule of thumb when setting a post is that the depth of the post’s hole needs to be one-third to one-half of the actual above-ground height of the post. So, a six-foot-high finished post ideally needs to be buried three feet into the ground.
Is cement required for fence posts?
Do Fence Posts Need To Be Set in Concrete? No, fence posts don’t need to be set in concrete, and there are plenty of other ways to fix your posts if this feels a bit too permanent. If you are using wooden posts, concrete may actually be the worst option.
How long will a treated 4×4 post last in the ground?
How Long Will A Treated 4×4 Last In The Ground? (Explained) A treated 4×4 will last 20 to 25 years in the ground if the conditions in the soil and climate are favorable. That number could increase to 40 to 75 years if you install the treated 4×4 in a cement ring rather than the soil.
How deep should an 8 foot post be in the ground?
In general, holes should be at least 3 feet deep for posts that extend 8 feet or more above ground level. Posts that extend 6 feet above ground level should have holes at least 2 1/2 feet deep.
How much concrete do I need for 6×6 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.
Is one bag of Postcrete enough for one post?
“Usually one bag of postcrete per post is enough, however you can use a two bags per post if you feel this is needed.
How many posts will 1 bag of Postcrete do?
Just over one bag per hole should be sufficient, blue circle postcrete suggest 1 bag will fill a 8 x 30 inch hole with a 4×4 post. You’re dimensions are slightly bigger than that so better to be safe than sorry and have a bit extra.
What is the difference between Postcrete and concrete?
Depending on its application, traditional concrete can take between 24-48 hours and 7 days to set properly and will reach its optimum strength after 25-28 days. Postcrete, on the other hand, is the name given to a post mix concrete, which is a ready to use blend of concrete ingredients that requires no mixing.
