@jollyluce and I think someone else at some point requested drafts for the doubleweave! Everyone else, these are what weaving patterns look like! I didn't actually make full drafts before weaving because the threading is very simple, though the tie-ups take some planning. The draw-down is not a proper thread-by-thread diagram, because the 2 layers of doubleweave make that look like nonsense which does not represent how the cloth actually looks and feels. The colours are inverted on the other side.
Threading - 2 blocks (shafts 1-4 and shafts 5-8) of a straight draw. I made the 1-4 block 64 threads wide (32 threads per layer) and the 5-8 block half that width. The blue threads are on odd shafts and the orange threads are on even shafts.
Treadling - again just treadled straight in 2 blocks. I made treadles 5-8 the longer block because that is more comfy for me, but this is arbitrary and it's fine to make treadles 1-4 the longer block if you want it to match the threading. Odd treadles are for blue weft picks, even treadles are for orange weft picks.
Tie-up - this is the hard but satisfying part. Consider each block of treadles (1-4, 5-8) separately. Then within that, consider each block of shafts separately (so think about treadles 1-4 connecting to shafts 1-4). Then within that, think about each colour separately. Treadles 1 and 3 weave blue yarn on top in the wide blocks -> treadle 1 raises shaft 1, treadle 3 raises shaft 3, the orange shafts 2&4 stay down. Treadles 2 and 4 weave orange yarn on the bottom in the wide blocks -> treadle 2 raises shaft 2, treadle 4 raises shaft 4, the blue shafts 1&3 stay up. Congrats, that's the lower left quadrant of the tie-up. Now do the same for which layer you want above/ below for that row at the narrow blocks (shafts 5-8) and then do it all again for treadles 5-8.
Other info - I used 8/2 unmercerised cotton set at 20 ends per inch, which as you can see was a little too dense to be square like I had intended. I stuffed the second mat with polyester filling during weaving. After machine washing and tumble drying, shrinkage was approx 14% warpwise and 8% weftwise for each mat, with more in the stuffed mat. You can choose whether to wrap the 2 weft yarns around each other to close the edges of the cloth, or to not do that to leave the edges open.
