Here you will find an alternative to finishing a window or stairwell to make your drop/suspended ceiling fit
Here the window box is custom built to fit in the window opening for the basement remodel project in Clarkston Michigan
The window box is leveled,shimmed and screwed into place. Notice the blue chalk line.That is were the wall angle for your suspended ceiling will be installed
The 2x2 suspended ceiling ends up right at the edges of the window box
Suspended/Drop Ceiling in finished basement.Window with Trim molding finished
This image is the top of the stair well showing were the finished ceiling will go.
Wall angle already installed.
Allor Remodeling & Construction
You can see top of stairs after suspended ceiling is installed in the finished basement | 
Finished basement window
