Guide
Will a king mattress fit in a 10-foot U-Haul?
U-Haul markets the 10′ for a king bed set. TruckSize’s door checker is stricter. Both facts belong on the same page.
Short answer
U-Haul’s official 10′ page lists a 71″ × 67″ rear door and states the truck can hold a king mattress with box springs and frame (reviewed 2026-09-20). TruckSize’s fit checker still returns likely-too-large for a rigid ~76″ × 80″ king mattress at common thicknesses, because it only tests upright, axis-aligned orientations—no diagonal tip, no mattress flex, no “twist it in.” Treat the official line as a real-world loading claim; treat TruckSize as a conservative pre-check. Measure your mattress, confirm the assigned door at pickup, and do not force a bind.
Specifications
| Truck | Volume | Payload | Interior (L×W×H) | Rear door | Typical use | Reviewed |
|---|---|---|---|---|---|---|
| U-Haul 10' Truck Official specs | 402 cu ft | 2,850 lb | 9'11" × 6'3" × 6'1" | 5'11" × 5'7" | Studio–1 bedroom | 2026-09-20 |
| U-Haul 15' Truck Official specs | 764 cu ft | 6,385 lb | 15'0" × 7'8" × 7'2" | 7'3" × 6'5" | 1–2 bedrooms | 2026-09-20 |
What U-Haul publishes
The dedicated 10′ specs we track list 402 cu ft, 2,850 lb payload, interior about 119″ × 75″ × 73″, and a rear door 71″ wide × 67″ high. The same page markets the truck for a king mattress with box springs and frame, alongside other small-apartment furniture.
U-Haul also notes that equipment can vary by production model. Brochure inches and the truck you receive can differ—always re-check the opening on the lot.
King face size vs the published door
U.S. eastern king mattresses are commonly listed at 76″ wide by 80″ long (Sleep Foundation size chart, reviewed 2026-09-24). Retail thickness often falls around 10–14″, but pillow-tops and hybrids vary—measure your unit.
In TruckSize’s upright model, one king face edge must clear door width (71″) or door height (67″) while thickness clears the other axis. Neither 76″ nor 80″ fits inside 71″ or 67″, so the checker flags likely-too-large even when thickness is only ~12–14″.
What TruckSize’s model says—and why it differs from U-Haul’s claim
A likely-too-large result does not “disprove” U-Haul’s marketing claim. Crews often tip, angle, or flex a mattress in ways our model refuses to count as reliable DIY planning. Soft goods can compress; box springs may split; frames usually disassemble. TruckSize stays conservative so a green light is not a surprise bind at the header.
Read both signals: U-Haul says experienced loading can work; TruckSize says the published rectangle alone does not prove an easy upright pass.
How to decide on booking day
If you trust the U-Haul loading claim and have help tipping the mattress safely, a 10′ can still be the right small truck—especially when the rest of the inventory is sparse. If your mattress is thick, pillow-top, or you will not tip it, plan a taller opening such as U-Haul 15′ (87″ × 77″ door in our data) or verify another path (garage door, professional handling).
Enter measured length, width, and height in the calculator. A likely-too-large result means “not proven under our upright rules,” not “physically impossible for every crew.” A dimensionally-possible result still needs a real-world dry fit at pickup.
Volume and weight are separate questions
King bed + frame planning volume in our catalog is about 65–75 cu ft with a 170–220 lb band—fine inside 402 cu ft on paper. Door geometry, not cubic feet, is the usual bottleneck for this question.
Payload on the 10′ is only 2,850 lb. A king set plus dense boxes can still stress weight even when the mattress eventually clears the opening.
Sources
- U-Haul 10′ truck official specs — reviewed 2026-09-20
- U-Haul 15′ truck official specs — reviewed 2026-09-20
- Household goods cube sheet (planning volumes) — reviewed 2026-09-20
- U.S. king mattress face size (76″ × 80″) — Sleep Foundation — reviewed 2026-09-24
- TruckSize data sources — how catalog numbers are stored
- Methodology — fit, volume, and payload rules
What could change this
- Official marketing claims and TruckSize fit status answer different questions—read both.
- Mattress brands vary; measure your unit instead of relying on the “king” label alone.
- Diagonal loading and soft compression are outside TruckSize’s fit model.
- Actual rental trucks can differ by location and model year.
Compare with your inventory Enter your mattress dimensions to see TruckSize’s upright door-fit status before you book.