The back roller is now lifted from its stand and placed at the back of the loom. Each end can now be threaded through the heddles according to the design being used and the leash helps to keep the ends in the correct order. Once all of the ends are through the heddles, they are ready to be passed through the reed which determines the tightness of the weave and also the final width of the cloth.
This process alone can take several hours to complete and cannot be rushed. By taking the time to get things right at this stage, it can save having to correct mistakes of re-threading once weaving is ready to commence.
The ends are now tied onto the apron rod which is connected to the front roller and now the warp can be wound forwards ready for weaving.