Given its low water absorption level, porcelain stoneware can be used on the inside of swimming pools, whatever the format. You should choose adhesive and mortar that are suitable for swimming pools.
How to make a floor plan:
With the help of a tape measure, measure the long side and the short side of your bathroom.
Create a simple drawing and write down the measures.
Also add structures: doors, windows and sanitary items.
If you want you can also add measures for doors and windows and their distance from the wall.
If you want to remove any sanitary ware please mark with an X.
The more information you add, more accurate your bathroom will be.