Should I Tile My Floor Or Walls First

Stud walls need to be installed over double plated floor joices for the extra weight.
Should i tile my floor or walls first. Do i grout the walls or the floor first. I have finished tiling my shower and am ready to grout. So if you put you subfloor down first it will probably take just as long if not longer to do all the additional measurements to find the plates for accuracy. Walls first floors last if anything its because walls tend to have white or lighter grouts than floors so if you do the floor first and grout with grey when you do the walls you will inevitably drop grout onto your lovely floor and cause light patches to your grout also you might drop a tile onto your floor and chip something get your walls out of the way all shining and clean and then do.
There are no doors on the shower. So to accommodate the flooring tile many like to leave a small gap between the last row of wall tile and floor. Or fill the gap with grout. A gutted room eliminates much of the dirt and grime associated with removing old carpet tile or wood flooring.
The grout color for the wall tiles is slightly darker than the grout color for the floor. There is no such rule to lay floor tiles before the wall tiles. I think the 3rd photo is the floor tile. Some like to use a ledger or other space saver to indicate where your missing row should be.
The ideal is to first do any prep work to the walls e g ripping up wall paper sanding and patching walls etc. When tiling a shower do the floor first then screw level batten to the wall just high enough to fit a tile under it at the lowest point then tile the walls by the time you have done this you should be able to remove the batten and cut the remaining. The reason for that is that this can damage the floors. And after installing the floor tile you can install that final or first row of wall tile.
Sorry for the confusion that is not my bathroom just showing the exact tile i m using in my frameless borderless shower stall the second photo is the vanity i bought that will float somewhat on the wall there are no windows in the bathroom. The code states that wall tiles must overlap floor tiles also tiled hobs should a top tile that overlaps both vertical tiles on each side. Although placing the floor tile at last would. Also it s often better to paint the ceilings first especially given that the ladders will rest on the floors.
The walls are lft 6x24 tiles and the floor is natural stone pebbles. But commonly the floor tiles are placed before the wall tiles.