We're talking monster size, with nine decks and 540,000 square feet of deck space (I'm assuming only tanker ships are larger). The MV Tonsberg which is on its maiden voyage around the world, has been dubbed a "ro-ro" ship because equipment gets rolled on and off via a huge ramp. It dropped off some heavy machinery, tractors and automobiles. From the Press-Telegram:
The ship, owned by Norway's Wallenius Wilhelmsen line, is 870 feet long and 105 feet wide. Its lower decks are designed to carry large machines such as bulldozers, buses, tractors, excavators and cranes. The upper levels are outfitted for passenger cars and trucks. The top deck can also be arranged to carry random cargo like windmill blades and yachts, the company said in a statement.