Guide
Will a couch or mattress fit?
Cargo volume answers “will it fit in the box?” Door openings answer “will it get into the box?” Those are different questions—and DIY movers often mix them up.
Volume is not door fit
A sofa can leave plenty of cubic feet unused and still fail at the rear opening. Mattress size names (queen, king) also hide thickness and whether you can tip, rotate, or partially disassemble a frame. TruckSize keeps door-fit checks separate from volume and payload status so a roomy truck is never shown as a guaranteed furniture path.
When rear-door dimensions are unpublished for a provider (Penske in the vehicle data we publish), fit stays unknown / verify with the provider. Unknown is not a pass and not a fail—it is a planning gap you close before booking day.
What TruckSize checks when you measure
For oversize or “measure largest item” pieces, the calculator asks for length, width, and height. Those dimensions are checked against published rear-door openings in every upright orientation. The tool does not invent diagonal loading tricks or soft-furniture compression.
Once you save measurements for a furniture item, TruckSize keeps them tied to that piece—so renaming the custom line later will not ask you to measure it again. Older saves that only stored a name still count as measured when the name matches the item in your list.
Couches and sectionals
Sectionals often win by separating pieces; a one-piece sofa rarely does. Check whether arms, chaise depth, or a sleeper mechanism increase the minimum dimension that must clear the door. If the largest piece still exceeds published openings on your candidate trucks, plan a different truck, a different path (garage door), or professional handling—not a tighter pack in the same opening.
U-Haul and Budget publish rear-door sizes for the trucks we track; use those numbers when you compare. Cross brands carefully: a “15 vs 16 foot” pair can share a length class while only one brand documents the door.
Mattresses and box springs
Mattress bags help protection more than geometry. Thickness, pillow-top bulk, and whether the box spring splits matter more than the “queen” label. Stand the mattress on edge only when the door height and your crew can control it safely—do not assume every truck’s opening matches the bedroom doorway you already cleared.
If both mattress and sofa are oversized, measure both. The calculator can include multiple fit-check dimensions; it no longer silently ignores pieces after the first few.
When the honest answer is “not this truck”
If every eligible truck shows not-verified doors for your largest piece, stop optimizing cubic feet and call the rental location for the assigned unit’s opening. If published doors fail every orientation, size up only when the larger truck actually publishes a bigger opening—or split the move. Payload can still disqualify a truck that clears the door.
Bring a tape measure to pickup day anyway. Fleet mix changes, and a substituted truck may not match the brochure unit you modeled. If the opening is smaller than your measured piece, rearrange the load plan before you leave the lot—do not discover the problem after the apartment elevator is booked.
For specialty items (pianos, safes, stone tops), door math is only one constraint. Weight, stairs, and carrier rules can force professional handling even when the rear opening looks wide enough on paper.
Related
Compare with your inventory Add your largest pieces with fit-check dimensions before you trust a length label.