DOESN'T FIT
It doesn't fitwith 5 in to spare
Will a door (79x112x112 cm) fit through a 91 cm door?
door· 31 in × 3 ft 8 in × 3 ft 8 in
+5 in (+14%)of clearance at tightest point
Item being fitted
door31 in × 3 ft 8 in × 3 ft 8 in
Space clearance
Door36 in × 6 ft 8 in
Result
5 in of clearance
▸ width axis · binding
Expert analysis
A door measuring 31 in × 44 in × 44 in does not fit through a door, with about 5 in to spare at the tightest point. The binding dimension is width: that is the axis where the door runs out of room.
+5 in clearance
· ON THE WIDTH AXIS
It exceeds the opening at the tightest point.
- The width axis runs out of room.
31 in vs 36 in
Clearance +5 in (+13.9%) on the WIDTH axis
| Axis-aligned check (before rotation) | ||||||
| WIDTH | 31 in | ≤ | 36 in | +5 in | (+13.9%) | |
| DEPTH | not applicable (2D opening — door) | |||||
| HEIGHT | 3 ft 8 in | ≤ | 6 ft 8 in | +3 ft | (+45.0%) | |
| Orientation | Width | Height | Result | Note |
|---|---|---|---|---|
| ✓ chosen31×44" (front/back) | 5" | 36" | ✓ | |
| 31×44" (laid flat) | 5" | 36" | ✓ | |
| 44×31" (front/back) | -8" | 49" | ✕ | Too wide |
| 44×44" (sideways) | -8" | 36" | ✕ | Too wide |
| 44×44" (sideways) | -8" | 36" | ✕ | Too wide |
| 44×31" (laid flat) | -8" | 49" | ✕ | 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
- MEASUREDUsing wide door dimensions36"×80" (914×2032mm)
- MEASUREDApplied 38mm practical clearance for handling
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.
Similar calculations
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