The floorplan code is on the decal by your door or in your owner's paperwork.
| Floorplan | Year | Main bed | Bunks | Source |
|---|---|---|---|---|
| 3401 | 2025 | 72 × 80 in | 48 × 74 in | Thor spec sheet |
| 3702 | 2026 | 72 × 80 in | 48 × 74 in | Thor spec sheet |
| 3901 | 2026 | 72 × 80 in | 48 × 74 in | Thor spec sheet |
| 4000 | 2026 | 72 × 80 in | 28 × 74 in, 48 × 74 in | Thor spec sheet |
| 3701 | 2022 | 72 × 80 in | 48 × 74 in | Thor spec sheet |
| 3902 | 2020 | 72 × 80 in | 48 × 76 in | Thor spec sheet |
The newest year with a published size is shown. Each floorplan page lists every year.