I have found it impossible to use directional fabric without a design board. However, I have no place where I can have a permanent one. I do have room to store one behind a double bookcase and then can just place in front of bookcase when in use. Problem is, I can't find stiff cardboard that comes larger than you would find for an appliance. Need suggestions that are roughly the same width at cardboard. Also, can I use any kind of white flannel for this board or is one kind better than another?