Product details:

These pine boards have a rough-sawn surface and look like weathered barn wood. The shiplap boards are available pre-painted in 5 warm, neutral colors, saving you some work. You can also get them unfinished to paint, stain, or leave as is. Also available in 2 widths. Boards have rabbet edges on both sides for a snug fit; board ends are square and butt together without overlap. Both sides are textured. Note that knots are clearly visible on unfinished boards; may be slightly visible on painted boards. Not recommended for outdoor use.