Casey Custom Docks Completes Wahoo CAT 5 Aluminum Floating Boat Dock with Sun Deck on Lake Allatoona: This two level floating aluminum boat dock features an 800-sq. ft sun deck with burnished slate roof and antique bronze rails. The underside is protected by DryJoist decking from Wahoo Decks. The dock and the 40-foot aluminum gangway are both covered in ironwood decking. The dock is secured in place by the cable to shore anchoring method.