Characteristics. Claybord is our innovative and stylish holds that provide additional support and presentation all in one. The new Deep Crib Panels come with 2 in. strips. birch plywood that are connected flush with the back edge of each panel. Cradle version can be used to paint on directly or as a support on which to mount watercolor papers, photographs fabrics and prints. Cradled panels save you valuable painting time. Size – 6 x 8 in.