Grand DesignSolitude

Solitude is Grand Design's flagship fifth wheel and one of the best-selling luxury extended-stay fifth wheels in North America. It sits at the top of Grand Design's towable ladder — above the Imagine travel trailers and the mid-market Reflection — in full-size, residential fifth-wheel territory aimed at full-timers and serious travelers with a three-quarter-ton or larger truck. It is the natural cross-shop against Keystone's Montana, the other big-luxury-fifth-wheel line.

The pitch is space and residential construction. Every Solitude is built on a drop-frame 101-inch widebody super-chassis — a full five inches wider than many coaches in its class, which buys deeper sliderooms, wider sofas and sliding pocket doors at a shorter towing length — with a 5-side aluminum cage, a fully walkable TPO roof under a limited-lifetime warranty, and a fully enclosed, heated underbelly with heated tanks. The MORryde pin box with its rubber shear spring, 8,000-pound axles, MORryde CRE3000 suspension and a Tow Assist ABS and sway-mitigation system are standard running gear. Inside, hardwood cabinet doors, solid-surface counters, an Ultraleather furniture package, a professional-grade stainless cooktop with a built-in oven, an on-demand water heater with whole-house filtration and an all-in-one enclosed, heated utility center come standard.

Every Solitude also ships with a meaningful standard 330-watt roof solar package — a 50-amp Bluetooth charge controller, inverter prep, USB ports and a 20-cubic-foot 12-volt refrigerator — so the coach is off-grid-ready out of the box. For 2026 the line spans ten floorplans from a 34-foot, sub-13,000-pound rear-kitchen entry to a 43-foot, triple-axle, 23,500-pound full-time flagship, and all ten are profiled in depth below.

All ten 2026 floorplans are profiled in full with RVUSA-verified specifications, covering the entire current line: the light rear-kitchen entry, a rear-living plan with a central island, two front-living plans (a bath-and-a-half entertainer and a separate-front-living-room plan), the signature five-slide rear-kitchen plan, a three-sofa rear-den plan, a rear-kitchen bath-and-a-half master plan, a two-full-bath family plan that sleeps eight, a middle-bunkroom family plan under a lower roof, and the triple-axle heavyweight flagship.

For 2026 the Solitude line runs to ten floorplans, and every one is profiled above with RVUSA-verified specifications — the full current lineup, with no catalogued-only plans. Read end to end, the line sorts into a few clear groups. The light couples plans — the rear-kitchen 310GK and the rear-living 370DV — stay under the easy-towing end, with the 310GK's 6,900-pound payload the most of any plan. The two front-living plans share a weight and a stance: the 380FL adds a second half bath, while the 382WB spends that same space on a larger separate front living room.

The entertainer and full-timer plans fill the middle and upper line: the five-slide 390RK with its signature rear kitchen, the three-sofa rear-den 376RD, and the rear-kitchen, bath-and-a-half 417KB master plan. For families and guests there are two answers to the same question — the 391DL is the rare fifth wheel with two full baths and sleeps eight, while the 388MBS trades that second bath for a dedicated middle bunkroom under a lower 12-foot-9 roof. And the triple-axle 414LJMJ flagship steps up to a heavier 23,500-pound chassis with the largest holding tanks in the line. Nine of the ten ride the same 19,000-pound GVWR on two 8,000-pound axles; only the 414LJMJ runs three axles and a one-ton-dually tow rating.

The Solitude line sorts cleanly by what you do in the coach. For the easiest tow and the most payload, the rear-kitchen 310GK is the entry: under 13,000 pounds dry with a 6,900-pound payload, it opens the line to the widest range of trucks. Stepping up in size, the 370DV adds a central-island galley and a bigger rear lounge while staying relatively light.

For a couple who entertains, the choice is about where the living room goes: the five-slide 390RK puts a signature rear kitchen and an outside kitchen at the back, the 376RD raises a three-sofa den above the galley to seat a crowd, and the two front-living plans move the lounge up front — the 380FL with a bath-and-a-half, the 382WB with a larger separate front living room instead. For full-timers and a couple living aboard, the 417KB pairs a rear kitchen with a private master suite and a second half bath. For families and guests, the 391DL is the rare fifth wheel with two full baths and sleeps eight, while the 388MBS offers a dedicated middle bunkroom under a lower roof instead. And for the most serious full-time living, the triple-axle 414LJMJ flagship steps up to a 23,500-pound chassis with the largest holding tanks in the line — needing a one-ton dually to tow.

Across all of them the build is the same: the 101-inch widebody chassis, the MORryde pin box, the heated underbelly and the standard 330-watt solar with a 20-cubic-foot 12-volt refrigerator. The decision is layout and weight, not equipment level.