SO PRETTY! Add a focal point and interest to your room in just a weekend with this EASY tutorial for installing your own DIY plank wall by Table & Hearth. They used 4″ plywood underlayment was the ticket, especially since the panels are only $13 a piece! She had the store rip them down into 8″ wide planks for just a teeny cutting fee. Planked wall is painted Sherwin Williams, Peppercorn.