Shiplap is molded with a reversible pattern, so either side of the board can be presented by the installer. The long edges are relieved (cut with a chamfer), and the butt ends are cut square. Shiplap is installed with the butt ends centered on the wall studs or ceiling joists.
TONGUE AND GROOVE
Plank wood is molded to 4s, it is planned to 3/4” and glue line ripped to 6” wide. Plank can be custom ordered in other widths. Two inch wide battens can also be cut to match the plank paneling.