Unfinished Pine Wood Shiplap Siding Boards for Interior, Exterior Walls For Exterior Use, UV/Weather Resistant Polyurethane Sealer Recommended.  From our line our of premium shiplap siding boards, these Unfinished Fir Wood Shiplap Siding Boards for Interior, Exterior Walls are the best wall covering solution for home renovation projects and remodeling. Furthermore, these shiplap boards provide a rustic or coastal aesthetic to your home. Excellent choice for beach houses, cottages, cabins, and even modern homes.  Our Unfinished Pine Wood Shiplap Siding Boards are constructed from solid fir wood and come unfinished. These can be left as-is for a natural look or they can be painted or stained to match your interior decor. Shiplap boards are commonly used as exterior siding, however, they have become popular for interior wall covering as well. They can be used to create feature or accent walls that adds character and transforms rooms by adding more interest and visual appeal. The possibilities are endless withe these wood shiplap siding boards.  Product Details - Unfinished Pine Wood Shiplap Siding Boards for Interior, Exterior Walls