Tucking a dedicated rear bedroom into a 21-foot package is no small trick, and the 18RBD pulls it off while keeping the floor plan functional for six people. Gulf Stream built this one light. Under 3,300 lbs max weight puts it firmly in half-ton truck territory, which opens up a lot of tow vehicles. The tankless water heater means nobody's timing their shower, and a 19,000 BTU furnace is genuinely sized for cold-weather use, not just a checkbox feature. One full bath rounds it out, and the compact footprint makes it manageable at smaller campgrounds where bigger rigs start to feel like a liability.
Other travel trailers floor plans (around 21 ft 1 in), similar in size and price to the Northern Express 18RBD.
