Is there a souce for planning tools for bathrooms. I have a very small old master bath. It presently has 6' x 6' footprint ( no tub). I can get added space by taking out an adjoining closet and getting a space 11' x 6' to work with. Still very small. The exact placement of tub, shower etc. is going to difficult to get right. I figure graph paper and cut outs are going to be inportant, but I can not find a resource to tell me the size and instillation needs for differnt types of sinks, tubs etc. ANy resource you can point me to?