Hinge #5, 14 gauge heavy duty. You will only see these on very tall doors with six sections or more. it is got the largest offset of the standard numbered hinges. Goes between sections 5 and 6. Most residential doors top out at a #3 or #4, so if you need a #5 you are probably dealing with a commercial height door or a custom-built tall residential one. Same 14 gauge heavy duty steel as the rest of the line. Pull the old hinge and verify the stamped number before you order.