On this unit after 3 weeks we cannot get the rug wide wrinkles out about every 3 in there is a wrinkle that runs the length or rather the width of the rug in the same direction of the fold. We've tried flattening them but every 3 in we don't have enough books or pieces of wood or any kind of weight for this amount of wrinkles unfortunate but we'll live with it I guess till we can find something better.