Free Online Furniture Fit Calculator
Check whether furniture fits through doors, halls, and room spaces.
Furniture
Route and room
Free floor width available for turning the piece at its destination.
Check details
| Check | Available | Required | Result | Limiting dimension |
|---|
Door checks assume the piece can be tipped or turned. Route checks use the narrowest footprint side, and the room check uses the footprint diagonal as a simple turning-space estimate. Always measure the actual doorway, remove the door if needed, and account for radiators and skirting.
About the Furniture Fit Calculator
Furniture that looked modest in the showroom can become an impossible object in a narrow hallway. This calculator compares the dimensions of a piece with the openings and spaces along the route: the door, the hallway, the stairs, and the free floor at the destination. It reports a pass or fail for each check and names the dimension that is causing the problem, so you know whether to measure again, remove a door, or choose a different piece.
How the checks work
The door check tests all three possible faces of the item against the opening. A rectangular box can pass through a door in more than one orientation, so the calculator accepts the best one that fits. This assumes the piece can be tipped, which is not always safe or practical for heavy wardrobes and pianos. The hallway and stair checks compare the narrowest footprint side to the available width. The room check uses the diagonal of the footprint as a conservative estimate of the space needed to rotate the piece upright or turn it into position.
What the result means
A green result means the entered dimensions fit with the assumptions above. It is not a guarantee: door frames have stops and hinges, hallways have handrails, and stairs have a ceiling above and a turn partway up. Leave a few centimeters or inches of margin on every check. If the door fails, removing the door from its hinges often adds several centimeters. If the hallway or stair fails, measure again at the tightest point rather than relying on the nominal width of the space.
Measuring advice
Measure the furniture at its widest points, including armrests, handles, and feet. For a sofa, the depth often matters more than the width because it determines how much of the hallway is blocked during the turn. Record the door opening between the frame stops, not the outside trim. For stairs, note the width between the handrail and the opposite wall, and check the headroom at the turn. The calculator uses one unit for every field, so convert all measurements before entering them.
Frequently asked questions
Can a piece fit through a door narrower than its width?
Sometimes. If the item is shallow, it can pass through at an angle or on its side. The door check tests all three faces, so it may find an orientation that works. Heavy or fragile pieces may not tolerate tipping, in which case use the upright dimensions only.
Why use the footprint diagonal for room clearance?
A rectangle needs a circle with a diameter equal to its diagonal to rotate freely in place. Using the diagonal is conservative, which is appropriate because the destination also needs room for the movers, a rug, and the final position against the wall.
Does the calculator include stair turns and ceiling height?
No. It treats the stair width as a straight corridor. Real staircases often have a landing, a turn, and limited headroom, all of which can be the actual limiting factor. Measure the tightest point of the stairwell and add extra margin if there is a turn.