How Much Concrete To Set A 4x4 Fence Post

This video shows you step-by-step instructions for how to set a fence post in concrete without mixing. Enter the required number of holes needed plus the diameter and depth of the hole in inches.

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Which would make the radius 6.

How much concrete to set a 4x4 fence post. To know exactly how many bags you need you should calculate for your hole to be a depth of ⅓ to ½ the height of your fence post with a diameter that is the width of your post x3. How to Set Posts in Concrete without mixing. First consider the size of the posthole in relation to the concrete yield.

As stated above fence post holes should be three times the diameter of your post and 1 3 as deep as your post. Two 50-pound bags of fast-setting concrete will set a 4-inch-by-4-inch or a 4-inch diameter post in a 10-inch diameter hole 2 feet deep. A typical 4x4 fence post requires a concrete sleeve about 12 inches 30cm across.

Check that the post is flush with the string line and plumb. The depth of your post hole plays a key role in the strength of your posts. So if youre planning on using a four-inch round or 4x4-inch square post your post hole will need to be 12 inches in diameter.

The results are the volume of concrete needed in cubic feet cubic yards and cubic metres. For our six-foot-high fence post we would need a hole thats 36 inches deep and 12 inches in diameter. Dig the post hole making it three times the width of the post and at a depth equal to 13 to 12 of the above-ground length of the post plus 6 right.

Setting Posts in Concrete 1. Once you set the next post youll need to measure to make sure the same length of post is above ground for all posts. If the concrete is too loose use braces to keep the post upright.

Of gravel around the fence post and then top with concrete. Step 3 Pour water into the dry mix and. This is due to the concrete expanding and contracting with temperature fluctuations and causing a slight amount of space between the concrete and vinyl.

Calculate the amount of concrete needed for setting fence post. After going through the math for the hole pi x r2 x h it comes out that the hole will have a volume of 157 cu ft but the post itself will take up 017 cu ft so the volume to be filled with concrete will become 14 cu ft per post. Plan to bury ⅓ of the post then allow a few inches several cm for the base beneath it.

For loose or sandy soil using a tube form is recommended left. AFFILIATE TOOL LINKSSwanson Post Levelhttpsamznto3qi2FFtIrwin Magnetic Post Levelhttpsamznto3cibABZDewalt 20V Drill Driver Combohttpsamznto. A standard 60-pound bag of CTS Rapid Set Concrete Mix yields approximately 05 cubic feet so depending on the volume of.

Pretty much the only thing to watch out for when setting vinyl fence posts in concrete is that over time the fence may begin to wobble just slightly. The average 6-foot tall 44 inch wide fence post requires two 50-pound bags of concrete. 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. Ive also seen that the diameter of the hole for a 4x4 post should be 12. Add the size of the post.

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