Plasterboarding Bay Window - Advice Needed

[Goldline1200]

Hello all,

I am plasterboarding my house as part of a full renovation and I am stuck on bay windows, specifically the sides. What's the best approach to doing these as the window is at an angle away from the wall?

Do I leave a straight edge on the drywall, or trim the edge to fit the angle or do I use beading? Or maybe there's something else I'm not thinking of.

Any advice would be appreciated.

Thanks.

 

[Topspread16]

Take the back off like the second picture

 

[Goldline1200]

Take the back off like the second picture

Thanks for your reply. I just wanted to clarify, did you mean the second picture of the board against the window with the edge of the board cut to match the window angle?

 

[Monkey Boy]

yes

 

[Cockney]

Maybe