We have this knotty pine in our open floor plan area. Want to lighten up. How do you prep walls to paint them? I've decided I want to keep the rustic look of it just paint it maybe an off white color. All thoughts and suggestions welcome! A friend told me to do shiplap, but I think we would have to remove the walls due to the electrical outlets would be further pushed into the wall. Help! See picture below. The room has a shiney finished crown molding, but the walls are Not smooth at all nor shiney like your typical knotty pine.