We recently removed the wall between the living room and kitchen and now have a long support beam between the two rooms. We plan to have the newly installed sheet rock (which covers the steel beam) finished with bullnose corner bead. We haven't been able to find any longer than 10 feet long sections of the bullnose, so it will have to be joined. How do you join the two ends of the bullnose and make it look nice? Any help would be appreciated!!!