I'm trying to come up with a design right now. I've seen a lot of great one's here but I'm kind of leaning toward this:
I plan on sinking four chain link fence posts in a 4 foot square pattern, about 3-4 foot tall. The local blue home superstore sells 21 foot sections of 1 3/8" chain link fence "top rails" that have a narrowed end (to slip fit into the next section of top rail when used for a fence). I will slip the narrow end into the top of the shorter fence post that are permanently mounted in the ground. At the top end I will build a 2X4 frame to keep the top square, and each 2X4 (side of the square) will extend approx 2 feet beyond the corner of the square. now I will have 3 feet separation from each (of the two corner plants) and 5 feet separation from each corner. I plan on growing four varieties and two plants of each variety.
I'll use those cheap carabiners to loop the top of the twine through and back down to the ground so I can lower the bine for harvest.
When harvest is over I can remove the long 21' sections and the shorter ones will remain until next year.
BTW, has anyone used hemp twine (100# test) for their bines?, I found some cheaper than coir twine and I thought hemp rope and twine was supposed to be durable through the elements.