Disclosed herein is a marine vessel, which in one example comprises a substantially continuous deck. Also disclosed is an example with a plurality of parallel longitudinally aligned channels extending from the forward deck to the aft deck. The vessel having a vessel cabin resting on and longitudinally movable upon the deck. The vessel cabin in one example having a plurality of rolling wheels attached thereto; wherein the rolling wheels roll upon the deck and allow longitudinal movement of the vessel cabin between the aft region and the forward region. A drive unit (motor) may be provided. The drive unit optionally mounted to the cabin and in one example having a drive wheel mounted to the drive unit and configured to rotate the drive wheel. The drive wheel(s) contacting the deck such that rotation of the drive wheel repositions the cabin between the aft region and the forward region.

A sustainable floating and land application community based on a mass-produced modular, pre-fabricated kit of parts referred to as floating modular units (FMU) or land module units (LMU). Both modular units are designed to allow for various needs while remaining simple to deliver and assemble by hand in remote destinations prone to volatile shifts in water levels and currents. Both floating and land module units can be erected for use on land and bodies of water.

A modular cabin system for a ship includes a plurality of first modular ship cabins disposed within a first plurality of spaces within a deck of a ship, each first modular ship cabin including a plurality of modules. The deck includes a row of support beams and a row of support columns, the row of support beams parallel to the row of support columns. The system also includes a plurality of second modular ship cabins disposed within a second plurality of spaces within the deck of the ship. At least some of the support beams or the support columns are disposed within a corridor between cabins of the plurality of second modular ship cabins, and at least some of the support beams or the support columns are disposed within spaces surrounded by adjacent cabins of the plurality of first modular ship cabins. Each space can be at least partially defined by walls of a first module and a second module of one of the adjacent cabins.

A combination recreation vehicle and houseboat having an upper enclosure assembly and a lower floating chassis assembly with a floor system portion, wherein the upper and lower assemblies are movable between a retracted condition and an extended condition independently of each other.

A modular crew cabin system includes a plurality of crew cabin modules interchangeably installable within a plurality of spaces within one or more decks of a ship. A crew cabin module can include four walls, a ceiling, a floor, an upper bunk, and a lower bunk. The upper bunk and the lower bunk are disposed adjacent to two different walls in an L-shaped configuration. The ceiling includes a lower portion and a pop-up portion disposed above the upper bunk such that a 6-foot-tall occupant can sit up comfortably within either the upper bunk or the lower bunk. The pop-up portion of the ceiling may extend higher than an industry-standard ceiling height while permitting utility conduits to be routed over the lower portion of the ceiling. Storage space within the crew cabin module may be greater than one cubic meter.

A modular system for the construction of pontoon boats includes a plurality of molded components that are assembled on the upper second surface to define the living space of the pontoon boat, wherein the molded components are secured to the upper surface of the pontoon boat. The plurality of molded components includes a roto core corner seating member, a roto core long side seating member, a roto core short side seating member, and a roto core helm member.