Anyone who needs a fence is looking for an outlet where they can find “cheap fencing”. However, do not confuse this with a poorly constructed fence. They want one that is well made, low maintenance and inexpensive.
Concrete fence posts and gravel boards are often used in combination to build the perfect fence. If every yard were perfectly square, leveling your fencing would be easy and simple. Since this is not the case, you are going to have to find other solutions.