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If you hire a fence installer for the project, the time it takes to build a fence is about 20 to 30 hours. Tackling the project yourself will take around 40 to 50 hours. It can take longer if you need to obtain permits, level the ground, remove the old fence, or remove a tree.

Privacy fences in residential neighborhoods tend to stand between 6 and 8 feet tall, but local building code usually dictates the maximum height. Livestock fences that border large land plots range from 3 to 6 feet. Shorter, decorative fences, which are common in front yards, are around 3 feet tall, on average. Fence height also tends to vary by material, with wood fences usually sitting at 6 feet tall, and chain-link and wrought iron fences tending to sit at half that.

The depth of your post hole depends on your post length. If you decide on a two-rail fence, the posts are likely 6 feet long. You want your hole to be at least 1/3 of the post length. In this case, your post hole should be two feet deep.

If you opt for a three-rail fence, the posts will typically be 7 feet long, meaning your post hole should be 28 inches deep.

The cheapest farm fences are typically wire fences, which cost less to install than traditional lumber fences. Barbed wire is one of the most inexpensive options due to its simple materials, making it a good choice for low budgets. It is suitable for confining docile animals in large spaces, as it provides a visual barrier and a mild deterrent. Other options like hog wire and woven wire fences are also cost-effective because they require less lumber than a full wooden fence. These types of wire fences are strong, long-lasting, and relatively easy to repair, though they are often considered less aesthetically pleasing than wood.