Further, along the entire perimeter of the site, you need to dig a moat under the foundation and determine the places for laying the pillars. The distance between the pillars persists mainly from 3 to 6 m. Create a foundation, build pillars, and install sections. Pillars are installed and fixed using a welded grid and reinforcement. What heights they will be, the owner of the site decides. If it is high enough, then it will be possible to place surveillance and lighting devices on top, in the future, in the future.