Sierra 5th wheel 305RLWby Forest River RV that is room enough for 6 RV'ers to sleep, is equipped with a tough fiberglass construction type, and has 2 spacious slides.Sierra 305RLW 5th Wheel weighs 9220 (dry)Fifth Wheels are constructed with a raised forward section for the master bedroom, allowing a bi-level floorplan. This style provides more room in the "living" area of the unit. Add in a couple of slide-outs in the living/dining area and a slide-out for the bedroom area, and it's easy to see why they are more spacious and the RV of choice for full-timing.