Easy to Assemble! Techstar Skid Plate Floats are available in 5 convenient sizes and are easy to assemble making a beautifully finished dock! Features: Foam filled for maximum durability Molded with U.V. stabilizers Builder-friendly Stackable for shipping 10 year warranty Model # SP4848 Outside Dimensions 48"x48"x12" Flotation(pounds) 800 Average Wall Thickness .187 Sq. Foot Deck Coverage 40 Shipping Weight 55 (pounds)