Level out ceiling with masonite?

[Häggens]

We want beadboard as a ceiling but the surface is quite uneven. Does this need to be evened out for a good result, for example with masonite or similar? I was thinking if one can staple/nail some strips of masonite across the existing one as is usually done with furring strips? Of course, we want it to add as little as possible so we can retain maximum ceiling height.

What do you think of that idea?

 

[Småbrukaren]

Yes, masonite is excellent for the purpose. Carefully level the ceiling beforehand. Old houses tend to not be particularly straight.

 

[Häggens]

Yes, masonite is excellent for the purpose. Check the roof carefully beforehand. Old houses tend not to be very straight.

This roof is probably a bit wavy, will try to cross measure so the roof feels somewhat straight at least.
Thanks for the response!

 

[vanpire]

Measure and attach strips of masonite where you will attach the beadboard.

 

[fribygg]

Installing sparse paneling instead provides the opportunity for concealed wiring for the ceiling light, and it's also easier to level and smooth the ceiling with sparse paneling instead of masonite.

 

[Oldboy]

Do not pave if you want to retain the old charming feel.

 

[Häggens]

Do not pave if you want to keep the old charming feel.

It turned out to be masonite and a bit wavy but really no problem to get in place, just a bit tricky to do it alone with the longest pieces. Just as you write, "perfectly" straight doesn't quite fit here. Done now, but I'm attaching a picture from the work in progress where you can also see some masonite.