The floorplan code is on the decal by your door or in your owner's paperwork.
| Floorplan | Year | Main bed | Bunks | Source |
|---|---|---|---|---|
| B42 | 2023 | 72 × 80 in | 27 × 74 in, 54 × 74 in | Thor spec sheet |
| F42 | 2023 | 72 × 80 in | 54 × 74 in | Thor spec sheet |
| R40 | 2023 | 72 × 80 in | 54 × 74 in | Thor spec sheet |
| L40 | 2022 | 72 × 80 in | 54 × 74 in | Thor spec sheet |
The newest year with a published size is shown. Each floorplan page lists every year.