I am thinking using an architrave for trimming my windows, but I am unsure how to trim the bottom. I don't really have the room to throw in a stool. There is just not really any room on the narrow existing sill to place it on. I was thinking for simplicity sake of just taking a thicker casing and placing it upside down on the bottom as a sill extension/apron in one. Does anyone do that? Thanks for any ideas.

 

How bold an architrave are you planning on using? Unless your room is rather large, it may overpower the opening. I would build my stool first with the depth that exceeds the thickness of the side molding by about 3/8" at least, and extending at least 1/2" past the width of the new molding, place a standard WM366 case molding under it as an apron with the ends cut at a 30 degree angle inward from top to bottom. Then you can install the three pieces forming the architrave around the window. I think using the thicker molding as an apron may be a little much. This is by no means rock solid advice, only a nail driver's opinion.

 

The architrave is not too bold. I was actually thinking of just using the thicker casing for the apron as the apron and window stool as one piece. So, I would not even build a stool. When I say "thicker" casing I mean a casing that the bottom part is thick, so it would act as an extension for the current window stool that is already part of the window. It's hard to explain, but I had the idea and was wondering if it's ever done or if it would look cheap and strange. Can you picture what I am talking about?

Also, do you ever see just the door ways with the architrave and not the windows?
Thanks