With five main ribs 1/2″ (13 mm) high, Barnmaster sheets are compatible with most 5 ribs, 32″ coverage sheets on the market. This versatile profile is fully reversible and can be applied as either a wall or roof covering, making it the perfect sheet to stock in 6, 8, 10, 12 and 14 foot lengths. Barnmaster can be used as a roofing profile for pitches down to 4/12.