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5 vertical posts are needed. I---I---I---I---I
It depends on what kind of animal you are trying to fence in (or out). For an average cattle pasture, I prefer setting them 10 feet apart, so you would need about 150 T-posts. I still prefer setting three six-inch treated wooden posts for each corner; they will hold up better to the tensioning of the fence/barb wire.
The corners of building, trees, sign posts, and best posts.
dont know the width of your deck, but if its more than6' feet it will sag.I suggest an extra post in the middle of the2 posts and crossbrace the roof.
This partly depends on the cost of 6 foot cedar boards where you are, partly on what you charge for labour, and to a lesser degree on just how strong you make this fence. When I did this, I always had 3 2x4 's per panel, and I always used 8 ft, posts concreted in . -That alone adds about a dollar per foot. In my area , Using #1 cedar the material cost is $87 per 8 ft section. so that's $10.87 per foot. If 2 guys are doing it, 140 is about 8 hours work. If you charge 40 per hour for both, that's $320 . -That allows 2.29 per foot. - So total cost is 10.87 + 2.29 = $13.16 per foot. -Naturally this figure may vary considerably with lumber costs in your area,and how much pay you ask.
160post at 20 ft. apart
Bout 115
5 vertical posts are needed. I---I---I---I---I
56 posts are needed for the fence
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.
4
32 posts
80 acres is 880 x 440 feet. Depends on how many cattle and how rough they are on your post settings. Most people around here in Oklahoma put their t-posts roughly 16' apart. This will take 164 posts. A roll of barbed wire will usually run a quarter of a mile of fence. So on a typical 5 wire fence it will take 30 rolls of barbed wire.
5
We recommend spacing posts no more than 10 feet apart.
It depends on what kind of animal you are trying to fence in (or out). For an average cattle pasture, I prefer setting them 10 feet apart, so you would need about 150 T-posts. I still prefer setting three six-inch treated wooden posts for each corner; they will hold up better to the tensioning of the fence/barb wire.
How many posts you need for a fence 54 x 54 depends on how far apart you wish to place the posts. Usually posts are placed every 6 - 8 feet, but stallion paddocks frequently have posts placed every 4 feet apart. It's not clear to me how many linear feet your fence is, because the question is written as if the fence is 54 feet high and 54 feet long.