They are definitely measured differently. The insert window you would measure inside the existint window frame, which in most cases is built out of 3/4" lumber all the way around. For a full replace ... read more
This recent blog may help you some. Take into consideration what type of roof you have installed on your new home. A GAF Designer roof increases the value by 7%!!! http://blog.rockandtait.com/do-you-l ... read more