Dry fit a row of tiles along each diagonal line.
How to lay tile diagonally wall.
Using a wet saw cut one tile into a triangle diagonally from opposite tip to opposite tip.
This is a fold.
Lay half of first tile with cut side facing 90 degree corner and tips almost touching walls at a 45 degree angle.
While a diagonal pattern might seem logical if you are using big tiles for an expansive space such as a large kitchen or great room floor many people worry that diagonal tiles can look too busy in a smaller bathroom and if you are a diyer planning to install the tiles yourself you might worry that.
Diagonal tile installations draw the eye out to the sides of the installation visually widening and enlarging the space.
If it seems complicated try this.
If the wall is really large i use a square to keep the corners lined up.
Lay out tiles in a dry run to make sure they fit.
If you are laying the diagonal tiles over the entire backsplas simply drawing a chalk line from one corner to the opposite will not work.
Because tile laid on a diagonal has half tiles or pieces of cut tile along each edge of the installation a lot more tile is required to complete the job.
Start in a 90 degree corner.
Instead you need to find the 45 degree angles on the wall.
Homeowners often shy away from diagonal tile layouts also called bias layouts in a bathroom.
Then every subsequent row is a process of draping over the pyramid back and forth.
Install tiles one through four as directed.
When i tile diagonally on a wall i always use a straightedge in the middle of the wall.