Installing fences involves several key steps to ensure stability and durability. First, you need to choose the right type of fence, such as wood, vinyl, or chain-link, based on your needs and budget. Next, mark the area where the fence will go, ensuring you follow any local regulations regarding property lines. After marking, dig post holes at regular intervals, typically 6 to 8 feet apart. Place the fence posts in the holes and fill them with concrete for support. Finally, attach the fence panels or boards to the posts, ensuring everything is level and secure for a finished look.