Thanks for the inquiry. The material we used for the walls is a 1x8 poplar ship lap that was pre-primed on all faces before installing. We do this for two reasons. First, to help reduce moisture absorption during the humid part of the year which in turn keeps the wood more stable. Second, so when the boards are installed and gapped to 1/8" between each board, you won't see the raw wood.

Would a lumber yard have ship lap? Can we purchase it already primed? We had a flood in our basement and want to give it a fresh new look. No more old paneling. I like the horizontal lines with the ship lap I think it gives height to the room. I love your designs. I wish you were local to Nassau County, New York.