Trim boards can be used for a variety of applications, from outdoor windows and siding to indoor baseboards, chair rail, and so much more. For the DIY novice and the woodworking professional alike, interior trim boards are often utilized when refurbishing furniture or building shelves. Available in several measurements, all our interior and exterior trim boards are made of unfinished wood, which means they can be stained however you wish. Choose from poplar, pine, and oak. If you prefer the ease of painted styles and a more finished look, our moulding might be a better alternative.