The floorplan code is on the decal by your door or in your owner's paperwork.
Floorplans
Horizon mattress sizes by floorplan
| Floorplan | Year | Main bed | Bunks | Source |
|---|---|---|---|---|
| 40A | 2018 | 60 × 80 in | – | Winnebago 2018 Horizon digital brochure |
| 42Q | 2018 | 60 × 80 in | – | Winnebago 2018 Horizon digital brochure |
The newest year with a published size is shown. Each floorplan page lists every year.