2025 Grand Design Solitude 310GK vs 2025 Grand Design Solitude S-Class 2930RL

Detailed Comparison

Shopping for an RV and torn between the 2025 Grand Design Solitude 310GK and the 2025 Grand Design Solitude S-Class 2930RL? We've put together a detailed spec comparison to help you decide.

Starting with size, the Grand Design Solitude 310GK measures 30.5 ft long and tips the scales at 12,500 lbs dry weight. The Grand Design Solitude S-Class 2930RL comes in at 31.5 ft with a dry weight of 13,100 lbs.

Capacity-wise, expect to sleep 6 in the Grand Design Solitude 310GK versus 10 in the Grand Design Solitude S-Class 2930RL. With 5 and 5 slide-outs respectively, the parked floor plans differ significantly.

Tank capacities are a key off-grid consideration. The Grand Design Solitude 310GK carries 64 gal of fresh water, 59 gal gray, and 48 gal black. The Grand Design Solitude S-Class 2930RL offers 92 gal fresh, 66 gal gray, and 50 gal black. The Grand Design Solitude S-Class 2930RL has the edge for extended dry camping.

Budget-wise, the Grand Design Solitude 310GK is listed at $80,000 compared to $88,000 for the Grand Design Solitude S-Class 2930RL.

For family camping trips, the larger floor plan and additional berths make a real difference. For boondocking, the model with superior solar and battery setup will keep you comfortable off the grid longer. If you're going full-time, the larger tanks and more robust build quality matter enormously.

Ultimately, both rigs have their merits — test drive each one and see which floor plan speaks to your lifestyle.