2025 Grand Design Solitude 390RK vs 2024 Forest River Cedar Creek 371FL

Detailed Comparison

Both the 2025 Grand Design Solitude 390RK and the 2024 Forest River Cedar Creek 371FL have loyal followings, and for good reason. Here's an objective look at how they measure up.

The Grand Design Solitude 390RK measures 30.5 ft in length at 15,400 lbs, compared to the Forest River Cedar Creek 371FL's 38.5 ft and 14,300 lbs. GVWR ratings sit at 19,100 lbs and 17,700 lbs respectively.

The Grand Design Solitude 390RK sleeps 10 while the Forest River Cedar Creek 371FL accommodates 4. Slide-outs play a role in livability: the Grand Design Solitude 390RK has 4 and the Forest River Cedar Creek 371FL has 3.

For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Grand Design Solitude 390RK at 70 gallons versus 60 gallons. Solar-wise, you get 400W on the Grand Design Solitude 390RK and 300W on the Forest River Cedar Creek 371FL. Battery banks are 300 Ah and 100 Ah.

At $62,000 MSRP for the Grand Design Solitude 390RK and $62,000 for the Forest River Cedar Creek 371FL, the Forest River Cedar Creek 371FL saves you $0. With only a 0% price difference, the choice comes down to features rather than cost.

If you're traveling with a family, look for the model with more sleeping positions and better storage. Boondockers: look at the fresh water capacity and solar/battery systems — they determine how long you can stay out. For the full-time RV lifestyle, every gallon of tank capacity and every inch of counter space counts.

Take these specs as a starting point, then go see them in person — there's no substitute for stepping inside.