Hired a pro to paint interior and exterior of my house. It was new construction. Outside is approx. 50% board and batten, also had cedar beams inside and out on porches. Outside was 3000 and inside was 8000. this included prime and paint all base, doors, closets and cabinets. All paint and stain was Sherwin Williams, high quality stuff. I highly recommend getting pros you dont have to bird dog and punch over and over! May cost a little more initially, but you'll be alot happier with the results!!