The floorplan code is on the decal by your door or in your owner's paperwork.
| Floorplan | Year | Main bed | Bunks | Source |
|---|---|---|---|---|
| 399TH | 2023 | 70 × 80 in | – | Vanleigh spec sheet |
| 399THX | 2023 | 70 × 80 in | – | Vanleigh spec sheet |
The newest year with a published size is shown. Each floorplan page lists every year.