Whether you"re out tackling a rushing stream or a glass-calm lake, a first timer or professional outfitter, a Grumman versatile double-ender is the right choice. Its wide beam and low profile gives stability and reduced wind resistance. And the double-ender is available in various light and standard weight models, 13 to 18 feet. A 17 ft. heavy-duty version is built specifically for camps and outfitters. Choose standard or shallow draft keels built to meet the needs of flat water canoeists or whitewater challengers.Tough as nails. Designed to last and perform, every Grumman® Canoe is hand-crafted from a special age-hardened, stretch-formed aluminum alloy substantially stronger than traditional alloys.Each Grumman Canoe is hand riveted with specially-designed T-6 Alumilite rivets for maximum strength along gunnels, keels and ribs. The stretch-forming process permanently shapes the curves designed into the bow, stern and sides for maximum strength.For added rigidity and unbeatable strength, Grumman Canoes use die-formed aluminum ribs and thwarts, and solid aluminum extruded gunnels.