1-1/2″ Deep Rib (3 1/2″oc Rib, 1 1/2″ Peak, 1 3/16″ Valley) 1-1/2″ Deep Rib (3 1/2″oc Rib, 1 1/2″ Peak, 1 3/16″ Valley) July 14, 2022 1-1/2″ Deep Rib (3 1/2″oc Rib, 1 1/2″ Peak, 1 3/16″ Valley)