Hinge #5, 14 gauge heavy duty. You'll only see these on very tall doors with six sections or more. It's 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're 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.