Shiplap walls are characterized by their long, overlapping wooden planks, which are often distressed or painted off-white for a weathered look. We most frequently see horizontal shiplap walls, but the planks can be installed vertically, too. As exemplified by the 15 projects below, shiplap accent walls are incredibly easy to install in just a weekend, make for a budget-friendly upgrade, and can shine in any room of the house—seriously.