A king mattress measuring 80 in × 76 in × 12 in does not fit through a door, but it's about 2 ft 1 in too large at the tightest point.
Your king mattress will not clear the space — and it is clearly over the limit at the tightest point. The passage is the limiting constraint.
Handling: What to try instead The item exceeds the space in every orientation — standard entry won't work.
| Axis-aligned check (before rotation) | ||||||
| WIDTH | 6 ft 8 in | > | 30 in | −4 ft 2 in | (−166.7%) | |
| DEPTH | not applicable (2D opening — door) | |||||
| HEIGHT | 12 in | ≤ | 8 ft | +7 ft | (+87.5%) | |
| Orientation | Corridor | Corner | Ceiling | Limiting | Result |
|---|---|---|---|---|---|
| 80" across, 12" up, 76" along | -50" | — | 84" | width | ✕ |
| 80" across, 76" up, 12" along | -50" | — | 20" | width | ✕ |
| 12" across, 80" up, 76" along | 18" | -25" | 16" | corner | ✕ |
| 12" across, 76" up, 80" along | 18" | -29" | 20" | corner | ✕ |
| 76" across, 80" up, 12" along | -46" | — | 16" | width | ✕ |
| 76" across, 12" up, 80" along | -46" | — | 84" | width | ✕ |
A door is a 2D opening — width and height matter; depth (path length through the doorway) doesn’t.
Tolerance ±¼ in (6 mm) is applied implicitly (band promotion to FITS_VERY_TIGHT) — see the note below the orientation matrix.
ItemFits fills in anything you don’t measure yourself. Whenever you see [standard], the real value in your home may differ — measure it and message us in the chat below; we’ll re-run the math.
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