To calculate the number of posts you would need to no the shape
of the 20 acres. If we assume the land is square we can calculate
the length of one side of the 20 acres as follows: 1 Acres equals
43,560 square feet 20 acres equals 20 X 43,560=871200 square
feet. We can find the length of one side by taking the square root
of 871200=933.4 feet. Divide the length of one side by the
spacing of the posts and multiply by 4 to get the total number of
posts. so for 12 feet spacing of posts 933.4 /12 X 4=312
posts.
Related Q&A：
How many fence post is needed to fence in 20 acres？-Well, that's a bit of a tricky question, cuz it really depends on a bunch of factors. The size and spacing of the fence posts, the type of fence you wanna build, and the shape of the 20 acres all play a role. Generally speaking, if you're using standard fence post spacing of around 8 to 12 feet, you might need anywhere from 300 to 500 posts or maybe even more. But this is just a rough estimate, ya know? It's best to measure the area precisely and do some calculations based on your specific fence design. Oh, and don't forget to account for corners and gates too!
