I never follow that pattern layouts anyway as they are definitely not economical and I can usually knock around half a meter off the recommended meterage. I generally cut double, sometimes folding the fabric so that I have 2 folded edges with the selveges running up the middle, but if I have a pattern piece that can be cut singly, I will fit it in and around the doubled fabric and cut out after. But generally, I wouldn't choose to cut singularly as I would get the pattern pieces the wrong way round!