Modular Bunk Information On’s self centering bunk drift on’s with interlocking modular sections. Designed to suit more than a few bunk board lengths. Perfect for painted, fiberglass, or aluminum boats. Suits 2 x 6 x 8 feet. same old bunk forums. Equipment comprises 4 every – 3 toes sections, 4 every – 1 toes finish sections and mounting hardware. Slide on or off with much less attempt and simple to put in.