We upgraded the simple trellis we used last year to something a little more substantial. 6 posts in concrete with 3 different heights of wire crossing between all of the posts. They aren’t visible in the photos but the wires basically form a rectangle with an X in the middle between the end and middle posts. That is repeated at 2, 3.5, & 5 ft off the ground. Each wire has a turnbuckle to maintain tension.