Main deck bulwarks shall be installed around the vessel’s deck and shall be fabricated from 8 mm plate with thick wall pipe Ф 150 X 12.5 on top, space between bulwarks and pipe to be closed by 8 mm plate full welded. Bulkwarks aft of frame 12 shall have flat top.
Bulwark brackets shall be of 8 mm flanged plate located on every second frame, placed in line with web frames or brackets on doublers on deck plating.