1b) - "The tile layout."
Two things make up step one for me on our projects. The tile layout and the lighting plan. Both need to be done and decided upon before any construction happens. The reason for this is simple. With a tile layout completed you can select the elevations for plumbing fixtures and you will know where to start your floor grading when your designing a barrier free shower.
Of course if your renovating your bathroom the demolition process would be first but most times tile layout and lighting plans can be decide. Sometimes the lighting plan is affected by wall and ceiling studs. Sometimes these are easy to change and sometimes not.
An average tile layout meeting talks me about two hours. We look at the cuts and how corners will be addressed. Things like how the tile ends on the wall or the ceiling are all covered. After a good tile layout a material list can be worked out. The number of tiles. The waste factor and on and on.
You can select the little arrow buttons at the bottom left to scroll through these pictures...
They are also a great way to find local builders, tile setters, painters, designers and on and on. Start your searches locally in the beginning. They perhaps open the doors to your favourite metro location or the world if you have days and days to search.
I have written a number of ideabooks for Houzz and continue to contribute there weekly. If you follow my page on Houzz you will not miss a step or a post on my efforts to showcase proper shower construction and barrier free planning.
All these drains available for sale here on www.no-curb.com