To do this I had to add an additional 100 heddles to the shafts (it is an 8 shaft loom, but I only have 4 on it at the moment).
The warp is Borgs Faro wool (6/1). It is lovely, but very, very sticky. I had to use a pick-up stick to help separate the warp strings every few inches as I wound the warp on so that it would pass over the lease sticks.
I had done a needle woven test sample and when finished this should close up well and still be a very light weight wool. (Yes, that is another Birka broken diamond twill you see as the pattern.)
I have about 16 inches woven so far and should have a total of three yards or slightly over that in woven fabric when done. I will start winding the warp for some mat-type rugs for the Pennsic tents soon :-)