Good Job, Donald. I did a lot of Macrame back in the day. I still have books, cord, beads, rings, etc. It has been a long time since I have made anything macrame. I do not recall ever seeing a chart for the amount of cord to use for a certain size container or where to place the knots so I am not any help there. I only worked from a pattern with explicit directions. I made and sold many things besides plant hangers. Hope you can find the answers you are looking for.