We have built a deck and would like to replace an existing window that now looks onto the deck with a door.
The window is about 30" wide and about 84" at its highest. I've been looking for 30"x84"(2'6"x7'0") doors and the selection is VERY limited.

BUT we could have many more door designs to choose from if we could use a 32" door.

It's hard to tell what the actual rough opening would be without ripping all the molding off now - before we begin the door installation.

Is there a way to maintain structural strength and cut away an inch from the 2x4's around the rough opening?

Thanks in advance.