RV mattresses · RV King
RV King mattress dimensions and size variations
RV King is not one size. Current examples include 70 × 74, 70 × 80, and 72 × 80 inches (177.8–182.9 cm wide and 188–203.2 cm long).
Semrush US · 1,900 searches/mo · KD 14| Label or calculation | Dimensions | What it means |
|---|---|---|
| Compact RV King | 70 × 74 in (177.8 × 188 cm) | Current listed variant. |
| Longer 70-inch RV King | 70 × 80 in (177.8 × 203.2 cm) | Same width, six inches longer. |
| Wider RV King | 72 × 80 in (182.9 × 203.2 cm) | Current example from two manufacturers. |
| Residential King baseline | 76 × 80 in (193 × 203.2 cm) | Four to six inches wider than these RV examples. |
Do not order by the RV King label alone. Confirm the exact platform rectangle and any custom corner or hinge geometry.
The same label spans three rectangles
Current product guides vary by up to two inches in width and six inches in length. This is enough to prevent a secure platform or fitted-sheet match.
Residential King accessories are usually too wide
A 76-inch residential King fitted sheet targets a wider top. Top bedding may still be usable if its finished size gives the intended coverage.
Measurement method
Start with the product and space you actually have.
- 1
Measure the platform. Record the usable width and length inside every fixed edge.
- 2
Map the shape. Note radiused corners, cutouts, hinges, folds, and slide clearance.
- 3
Measure depth. Check vertical room for the mattress and any bedding layers.
- 4
Match finished dimensions. Use the exact product specification rather than the RV label.
Questions, answered
Frequently asked questions
Is RV King the same as King?
No. Current RV King examples are 70 or 72 inches wide, while a residential King is nominally 76 inches wide.
How do I measure for an RV King replacement?
Measure width, length, depth, platform edges, radiused or cut corners, hinges, and slide clearance; then match the manufacturer’s finished dimensions.