Planning panel installation?

[topmount]

Hi
We thought standing paneling was nice and bought it for the whole room, but now I'm asking myself how to best plan the installation to get nice finishes against windows and corners (inner and outer). You want to avoid too narrow pieces.

So what are your best tips? The manufacturer provides covering measurements, so you can base it on that.

 

[O]

My best tip is to ask the one who knows best, namely the manufacturer.
Alternatively, the company you bought from.

 

[topmount]

Yes, but in this case, it only states on the manufacturer's site that you should measure the wall and adjust the alignment according to the measurement (not how to do it).