Macrame: Calculating how much cording to use

Calculating how much cording to use when making macrame items:
You'll need to calculate how long the length of your cording shouldbe. Although most projects will give you the regemended measurements,you should have some idea of how this measurement is reached.
The ends of cording should be 3 to 4 times longer than the pieceyou plan to make, however, since the cording is doubled in half for knotting it is measured 7 to 8 times longer than the amount needed. For example: if the Macram project will have a finished length of 1 yard you'll want to measure your cording 7 to 8 yards from one end to the other. Then when each end is doubled for knotting it will be two ends, each end being 3 to 4 yards long.
Make sure that you measure the ends generously since you don't wantto run out of cording and have to add to the project. It's much better to have extra cording than it is to run out and add in an inconvenient place in the design.