how can I use decors in from a CAD library provided from a manufacturer of ceramic tiles ?

resize to what dimension? such wooden decor is a rectangle, not square so I would crop it which I don't want to do.

I try to import an image of a wooden decor by Egger. Here is a producer image: https://pasteboard.co/IV8ZUdb.jpg
wich is 600x360mm. While import the aspect ratio is incorrect, I can modify either width or height. Is there any way to have a correct texture?

how can i elevate taras (around 20 cm)? do I need to make a new level?

how can i set one texture for the kitchen desk top and other for the cupboards fronts?