really easy to use (altho the hand does get tired after all the spraying!) Take the shutters down, lay them out on sawhorses, spray with garden hose then clean with a scrub brush & soap, spray off again. Once dry, spray paint. We've redone our shutters every 3 years for the past 10 years (easy enough to do!) and always been shocked at all the neighbors who don't know they can easily spray paint theirs. Can't really see the door...if it's a pretty door, I'd go with white paint but if it's not then...blend it in?