1/2″ Deep Rib (1-1/2″ oc, 1/2″ Peak, 1/2″ Valley) 1/2″ Deep Rib (1-1/2″ oc, 1/2″ Peak, 1/2″ Valley) July 13, 2022 1/2″ Deep Rib (1-1/2″ oc, 1/2″ Peak, 1/2″ Valley)