Abstract: An apparatus of and a method for the construction of an environmentally-friendly floating dock structure using heavy-gauge plastic tubing as pontoon floats with an overlying series of deck crosspieces is presented. The plastic pontoon floats are made from a high-density polyethylene material and arranged with the overlying deck crosspieces in such a manner as to provide the floating dock with a greater degree of stability, and are themselves constructed containing a highly buoyant material. The junctures between the adjoining pieces of the pontoon floats are sealed water-tight by a plastic joining process.