For vertical board layout
Start by finding the center of the wall and mark its location on the floor. Using a level to make it plumb, install the first plank on the wall centered on the mark with construction adhesive and nail in place with a brad gun (see instructions above). Use a level to make sure it is plumb. Next, attach planks on the left and right of first centered plank until you reach the corners of both walls. The width of the final plank at each corner will need to be trimmed to fit.