Custom size
Mattress InsiderLuxury Gel Memory Foam
- Memory foam
- 8 in thick
- not stated
Made to 59 × 76 inGet a quote
Grand Design Transcend 151RB mattress size
Main bed59 × 76 inCustom size
That isn't a standard mattress size, so order a custom size cut to your platform.
Grand Design spec sheet, 2027.
Mattresses in 59 × 76 in
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The Transcend bedroom. Measure the platform, not the old mattress, before you buy.
Bed sizes by year
| Year | Main bed | Bunks | Other beds | Source |
|---|---|---|---|---|
| 2025 | 60 × 80 in Queen | – | – | Dealer report |
| 2025 | 59 × 76 in | – | – | Grand Design spec sheet |
| 2026 | 60 × 80 in Queen | – | Murphy 60 × 80 in | Dealer report |
| 2026 | 59 × 76 in | – | – | Grand Design spec sheet |
| 2027 | 59 × 76 in | – | – | Grand Design spec sheet |
Years not listed weren't published.
The 151RB floorplan
Grand Design's 2027 151RB floorplan.
Is this your 151RB?
Check the year and length against your RV before you order.
| Year | Model | Length | Sleeps |
|---|---|---|---|
| 2025 | Transcend One 151RB | 19' 8" | 4 |
| 2026 | Transcend One 151RB | 19' 8" | 4 |
| 2027 | Transcend One 151RB | 19' 8" | 4 |
Other Transcend mattress sizes
Sources
- Grand Design (granddesignrv.com), archived copy: https://web.archive.org/web/20250328064021/https://www.granddesignrv.com/travel-trailers/transcend-one/151rb
- Grand Design (granddesignrv.com), archived copy: https://web.archive.org/web/20260416024450/https://www.granddesignrv.com/travel-trailers/transcend-one/151rb
- Grand Design (granddesignrv.com): https://www.granddesignrv.com/travel-trailers/transcend-one/151rb
Questions
What size mattress is in the Grand Design Transcend 151RB?
The main bed is 59 × 76 in (Grand Design spec sheet, 2027).