Great question. We love using trellises as they provide such a versatile look and use to a space (screening, aesthetic, wildlife attractor, etc.). The trellises in this photo are 4' wide x 8' tall with 4" grid. They are ground-mounted using cement footers to secure the legs. This is our preferred method to install trellises (compared to wall-mounting) as it does not damage walls and provides a clean look.