While I don't have nearly as much fabric as you, I have 'lost' pieces, from time to time. The latest missing pieces turned up in the bottom of the laundry hamper. They were still waiting to be washed. Washed one of them (4 yard length), yesterday evening. After pulling it from the dryer, was folding it and didn't have a wide ruler handy, so grabbed a flat Priority Rate packing box. In very short order, that baby was neatly folded . . . and I felt as if I'd just invented a new folding tool!