Will a king mattress (193x203x25 cm) fit in a space?
Expert analysis
A king mattress measuring 76 in × 80 in × 10 in fits in a space, with about 1 ft 8 in to spare at the tightest point. That margin already subtracts a 1 in handling allowance, so it reflects a realistic load rather than a paper-thin theoretical fit. One caveat: item is rigid and cannot be compressed, bent, or disassembled.
- Binding axis
- Hallway height
- Tightest clearance
- 1 ft 8 in clear
- Result
- Fits in its best orientation
It fits with clearance on every axis.
Your king mattress will fit through the hallway, with comfortable room to spare.
Handling: Orient the item so it is reoriented.
| Orientation | Width | Height | Result | Note |
|---|---|---|---|---|
| 1930.3999999999999mm across, 254mm vertical | -40 in | 7 ft 2 in | ✕ | Too wide |
| 1930.3999999999999mm across, 2032mm vertical | -40 in | 1 ft 4 in | ✕ | Too wide |
| 254mm across, 1930.3999999999999mm vertical | 2 ft 2 in | 1 ft 8 in | ✓ | |
| 254mm across, 2032mm vertical | 2 ft 2 in | 1 ft 4 in | ✓ | |
| 2032mm across, 1930.3999999999999mm vertical | -44 in | 1 ft 8 in | ✕ | Too wide |
| 2032mm across, 254mm vertical | -44 in | 7 ft 2 in | ✕ | Too wide |
Margins shown are calculated; allow ±¼ in for tape-measure precision.
How the door-passage check works
A door is a 2D opening — width and height matter; depth (path length through the doorway) doesn’t.
- Generate all 6 dimension permutations of the item (3 axes × 2 flips).
- For each permutation, apply the door constraint: item_width ≤ door_width AND item_height ≤ door_height.
- Subtract 1.5 in handling clearance from each axis to leave room for human movement.
- Pick the permutation with the largest minimum-axis margin — that’s the orientation a mover would choose.
- Verdict ladder (verdict-tiers.js): FITS if margin ≥ 2 in; FITS_TIGHT if 0.5–2 in; FITS_VERY_TIGHT if 0–0.5 in; DOESN'T_FIT below.
Tolerance ±¼ in (6 mm) is applied implicitly (band promotion to FITS_VERY_TIGHT) — see the note below the orientation matrix.
Dimensions
- MEASUREDPath from entry to destination is straight with no turns
- MEASUREDFloor is level with no steps or thresholds
- MEASUREDCeiling height assumed 8ftnot measured
- MEASUREDReal-world factors (trim, baseboards, hardware) may reduce available clearance.
- MEASUREDDetected mattress, sizeking
- MEASUREDEstimated width, depth, height for king mattress from local_db
Space geometry
- Square corners and a flat floor
- No trim, fixtures, or hardware protruding into the opening
- Door swings fully open (90°+) and stays open during passage
Handling
- ±¼ in tape-measure tolerance applied
- 1.5 in handling clearance subtracted from raw margins before the verdict
- Item treated as rigid — cannot compress, bend, or disassemble.
Why we make assumptions
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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