Chair Rails Product Model Dimensions (width x height) Side 3D 432 5/8″ x 2-1/2″ 445 1″ x 2-1/2″ 457 3/4″ x 1-3/4″ 510 5/8″ x 3″ 521 3/4″ x 2-1/2″ 550 1-1/8″ x 3-1/4″ 619 11/16″ x 3-1/2″