Innovative design ensures that with all apex railings systems each vertical bar is permanently located within both the horizontal rails. New production techniques allow each bar to pass through the horizontal rails and solid joints formed by expanding the walls to each vertical bar within the horizontal rails. During this process the vertical bars are enlarged until they are forced hard against the walls of the horizontal rails and securely locked in postition. All bars are fully secured into both the top and bottom horizontal rails and giving constantly crisp, clean and solid secure joints.