Last time we were in Nashville I put up the "sunsail" provisionally (you can see here). James had a good idea how to do it better and we had already bought the materials but run out of time to do it.
The poles come 10 feet long. So James cut the two close to the house 2 feet shorter = 8 feet. The two on the other side he cut 3 feet shorter = 7 feet high.
The sunsail was my birthday present. It is amazing how much it helps to keep the kitchen/dining area cool but I talked about all that in the link I gave you in the beginning. I love it. We might have lunch outside today.