On a warping board, establishing the path is a simple matter of carrying the guide string back and forth to measure out your warp’s length. Any arrangement can be made as long as all the warp threads measure out equally along the length of the guide string and there are pegs for the leases at each end. See Figures A, B, and C. If you warp your loom from back-to-front you need two leases. Front-to-back warping uses just one.
Whether you make one lease o
r two, it’s more efficient to use the pegs sequentially, up to the length you need, as in Figure D rather than randomly.
More Information in “Weaving for Beginners”