An inside mount is hung within the wooden frame, leaving the window frame visible. This is nice if you have deep windowsills or decorative woodwork around your window. An outside mount simply goes above the window frame and can extend beyond the sides of the window. You can create the illusion of larger windows by hanging the curtain close to the ceiling and extending it outside the window frame. Whichever method you choose, this is where you will take measurements from.
Placement is a topic that covers several steps in the curtain making process.
You must first consider where you are going to mount your curtain. We call this your mounting choice. Another area of consideration is measuring. Taking careful measurements based on your mounting choice is very important, and we'll tell you all about it. Finally, you need to keep in mind that your curtain will be either rod mounted or board mounted.