[FOX_111]

I say squares, as the burlap is made of strands that cross each other at a 90 degrees angle. So when you pull the strands out , you get 2 equal lenght of strands.

Your square should be about twice the lenght of the jute you want on your ghillie as you tie the strand with a knot from the middle, doubling the amount of jute hangning from the net. Does it make sense? if not, just try it and you will figure it out.

Don't attach big burlap flaps to your ghillie. That is good for quick easy volume, but it won't blend in with grass on it's own. You want individual strands, not woven burlap.
The hard part is the un-woving process.