Blender file contains in first collection four non-subdivided meshes - fence field with two poles - fence field with one pole on left side - fence field with one pole on right side - fence field without poles

In second collection the file contains the same with subdivided poles

In third collection the file contains source meshes with editeble arrays and subdivision, so you can easily make wire of basicly any lenght and height, as many poles as you want and even subdivide wire itself

Polygons and vertices count vary very much with chosen setup.