I dry fit the double-hung windows on the side of the house, then glued all the windows in place, assuming they'd all be the same depth.
They are not.
I should have dry fit all of them, so that I could make alterations before I glued them in place. Now I'll have to add to the depth with them in place. Ugh.
I am mostly irked at myself for rushing, but am also a little irked at the manufacturer for the inconsistency.
While I'm contemplating a plan of action to adjust the windows I'm working on the closet door. It's coming along nicely.