A canvas board is a flat, rigid surface used for painting, typically made from a wooden or cardboard frame covered with canvas material. Artists often prefer canvas boards because they provide a sturdy base for various painting techniques, including oil and acrylic. The texture of the canvas allows for better paint adhesion and can enhance the overall appearance of the artwork. Canvas boards come in various sizes and can be primed or unprimed, depending on the artist's preference. They are lightweight and portable, making them ideal for both studio work and outdoor painting sessions, often referred to as plein air painting.