Grand Design Solitude 380FL vs Grand Design Solitude 310GK
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Quick take: The Grand Design Solitude 310GK costs $7,000 less; the Grand Design Solitude 310GK is 8 ft shorter and easier to maneuver.
| Spec | Grand Design Solitude 380FL | Grand Design Solitude 310GK |
|---|---|---|
| Price | $105,000 | $98,000 |
| Rating | 4.7★ (3,800) | 4.7★ (3,100) |
| Type | Fifth Wheel | Fifth Wheel |
| Year | 2025 | 2026 |
| Length | 42 ft | 34 ft |
| Weight | 15,200 lbs | 12,100 lbs |
| Sleeps | 4 | 4 |
| Fresh water | 72 gal | 81 gal |
| Slide-outs | 4 | 3 |
| Solar | 200W | 200W |
| Four-season | Yes | Yes |
| Pet friendly | Yes | Yes |
| Towable | Yes | Yes |
| Chassis | — | — |
Why owners pick each
Grand Design Solitude 380FL
- ✓Front living room layout maximizes entertaining and relaxation space
- ✓Grand Design's warranty and customer service are best in the industry
- ✓Built specifically for full-time living with residential fixtures
Grand Design Solitude 310GK
- ✓106 gallons of gray capacity plus 81 fresh makes long off-hookup stays realistic
- ✓35K BTU furnace and enclosed, heated utility center handle genuinely cold weather
- ✓Rear-living triple-slide layout lives like a residential condo at 34 feet