A useful technique for securing the top or bottom of a weave is hem stitch.This leaves the warp threads visible at the top because you do not have to push the rows tightly together, or finish the weave with a support rod. It is easiest if you leave the weave on the loom; I have deliberately taken it off here to show you how the rows can unravel at the top of a weave if they have not been hemmed.
When you have reached the final loop on the right-hand side of the weave, take the needle back behind it and wind the twine around the
base of the loop, close to the weave, a few times in an anticlockwise direction. Pass the needle through the loop and pull tight. Bring it from the back of the weave to the front in between the first and second rows of the weave. Repeat the process on the next loop, as shown.