Tiling the side walls will sort of take away or diminish the impact of the back tiled wall.
Should wall tile be as high as the sinl.
But only if it is high enough.
The main wall of my kitchen is 11 5 ft tall.
It s the perfect height for a backsplash behind sink luxe looking and easy to wipe down around toilet.
Besides i always prefer to transition materials on an inside corner wherever possible and this is the perfect place to do so.
If your wainscot is tile then it can serve a dual purpose by working as the backsplash behind your sink.
My cabinets are the tall 45 cabinets.
The wall of tile you re doing over the sink area will be a nice statement and has a more high end look.
Take wall hangings and mirrors into consideration.
I did marble tile to 48 in powder room.
Plus that height kept the very wallpaper we hung above the marble safely away from splashing water.
I am planning on taking the subway tile backsplash up to the ceiling above the window by the kitchen sink which is an 8 ft wall that meets the slant.
The classic design feature is usually between 34 and 54 high with 36 being the average height.
If you have a feature wall with a window and bespoke joinery and you are using a feature tile you may feel that you need to find a suitable cut off point.