What if a word covers two double word squares?
If you start a word on a double word square and end the word on a double word score, how do you score it? The point value is 14 before any doubling.
If a word covers two double word squares you get four times (4x) the face-value of the word. In your case, that would make the play worth 56 (=14x4) points.
If you happen to use up all your tiles in the process, you also get the usual 50 bonus points.
As a result, the 'four-timer' or 'double-double', as such a play is often called, can be worth a helluva lot of points, and expert Scrabble players actively seek them out.
While where on the subject, I should also mention that if you play a word that covers two triple word squares, you get nine times (9x) the face-value of the word.
Again, with a 50 point bonus if you use up all of your tiles, the 'nine-timer' or 'triple-triple', as it is called, can be worth 300+ points!
I hope that both answers your question and motivates you to search for these elusive but rewarding hotspots ;-)