What this checker works out
This checker compares the two smallest dimensions of a piece of furniture against your narrowest doorway and hallway, and flags the pinch points that are likely to cause trouble.
It works on the principle that furniture goes through an opening on its smallest face. What defeats a move is rarely the size of the item alone — it is the turn at the top of the stairs.
Measure the furniture and route
Result
Before you measure
- Measure the item at its widest points including feet, handles and any protruding trim.
- Measure the doorway between the frames, not the door leaf, and check whether the door can be taken off its hinges.
- Measure the narrowest point of the route, which is usually a turn on a staircase or a landing rather than a door.
- Add packaging if the item is still boxed. Cardboard and corner protectors can add several centimetres on each side.
A straight corridor lets a long item travel diagonally. A 90 degree turn does not — the item has to rotate within the space available, and the diagonal of the turn becomes the limit. This is why sofas that pass every doorway still get stuck on a landing.
How this calculator works
A comparison of the smallest dimensions against the tightest openings:
Smallest and middle dimensions taken from width, depth and height
Doorway fits if the smallest dimension clears the width and the middle clears the height
Removing legs and doors credits an 8 cm reduction
Hallway fits if the smallest dimension clears its widthStairs and tight turns are flagged as an additional risk, reduced but not removed if a lift is available — a lift car has its own depth and door width, which are frequently the real limit in a block of flats.
The checker does not model diagonals or rotation, which is exactly where a marginal case is decided. It flags a risk; it cannot promise a fit.
Worked example: a bookcase through a standard door
Using the default figures — an 80 by 30 by 180 cm bookcase, a 76 cm doorway 198 cm high, a 90 cm hallway:
- Smallest dimension 30 cm, middle 80 cm
- Doorway: 30 cm clears the 76 cm width, 80 cm clears the 198 cm height — fits
- Hallway: 30 cm clears 90 cm — fits
- Verdict: likely to fit
Now try a 200 by 90 by 85 cm sofa through the same door. The smallest dimension is 85 cm against a 76 cm doorway, and it flags immediately. Tick stairs as well and it flags twice. That sofa needs the legs off, the door off its hinges, or a window — which is a considerably better thing to know before delivery day than during it.
Common mistakes
- Measuring the door leaf rather than the frame opening. Taking the door off gains several centimetres.
- Forgetting the turn at the top of the stairs. It is usually tighter than any doorway.
- Measuring the item without its feet or handles. They are what catches.
- Leaving packaging on. It can add 5 cm or more on each side.
- Assuming a clear result guarantees a fit. Rotation and diagonals are not modelled.
Frequently asked questions
What if it will not fit?
In order of preference: remove legs, doors, drawers and cushions; take the room door off its hinges; take the item apart if it is designed to come apart; bring it through a window, which removal firms do routinely with the right equipment; or accept it is the wrong item for the space. Flat-pack furniture assembled in the room it will live in avoids the problem entirely.
How much does taking a door off gain?
Typically 4 to 5 cm of width, since the leaf sits within the frame and the stops project. It also removes the handle, which is often what actually catches. Lifting a door off its hinges takes a few minutes with a screwdriver and is almost always worth doing before attempting a tight item.
Do removal firms deal with this?
Yes, and a good one will survey before quoting. They carry hoisting equipment for window entry, straps for stairs, and the experience to judge a turn by eye. If an item is genuinely marginal, ask before booking rather than on the day — the surcharge for a hoist arranged in advance is much smaller than the disruption of discovering the need on arrival.
What about lifts in flats?
Check the lift car's internal depth and the door opening, not just the floor area — a long item may need to go in diagonally or stand on end, and the ceiling height matters for the latter. Many blocks also restrict lift use for moves to certain hours, which is worth confirming with the building manager.
Is what I enter stored?
No. Measurements are processed in your browser and never transmitted or retained.
Related tools
References
- GOV.UK — consumer rights when using removal and delivery services
- Health and Safety Executive — manual handling of heavy and awkward loads
Sources are checked at publication and can change — how I choose and check references.