A curved fence may be a bit of a misnomer. The segment of fence between each post is always a straight line no matter what the building materials. If the posts are set following an arc or curve, the series of straight lines formed by each fence segment forms a curve. Building a curved fence involves the proper placement of the posts to create the proper fence line.
Mark out the curve of the fence. Small projects may be planned by laying a garden hose on the ground; mark bigger projects with spray paint. If you want a perfect curve, choose the center point of the arc and drive a stake at that point. Measure out a string of the desired length and tie one end to the stake. Move around the stake with the spray paint held at the end of the string to create an arc.
Select one end of the arc or curve and place a stake at this point. There will be a fence post at this location. Reinforce the post with braces if there is a long run of fencing leading to this post in wire fence projects.
Measure from this stake to the next planned location along the curve. Make the measurement in a straight line. For example, if you plan on installing fence posts every 12 feet, mark the point where a 12-foot-long string crosses the curve you marked in Step 1. Repeat the process from the point of the next post until the curve is complete.
Dig fence post holes at each marked location. Set fence posts in the holes and tamp the soil around the post.
String wire around the outside of the curve for wire fences. By keeping the wire on the outside of the curve, the wire will not lose tension if it becomes disconnected from the posts. Wood fence components can be attached to either side of the posts depending on the desired appearance.