I have started installing ceiling panels in the upper floor of our 1.5-story house. What I noticed in the first room was the importance of getting the first panel at a right angle. It's easy to make a slight mistake when cutting the first panel.
I was wondering if there are any good tricks to use when positioning the first panel/reference points? I would gratefully accept tips in general when it comes to ceiling panel installation if anyone has a bit more experience.
