Will It Fit Through the Door? Couch and Furniture Doorway Checker
Enter your sofa or furniture size and door opening. See if it fits straight, turned or tilted, the tilt angle, the room left and an optional hallway turn check. Inches or mm, in your browser.
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Nothing is sent until you press Send. Your measurements are included only if you tick the box, and you can see the full report below first.
When to use this
- You are buying a sofa, bed frame, wardrobe or appliance and want to know if it will get through your door.
- You are moving and need to know whether to take the door off its hinges.
- You want to know how far to tilt a piece, and which way round to carry it, before you lift it.
How to use
- Choose inches or millimetres. Enter the furniture length, depth and height at their largest points.
- Measure the doorway: the narrowest clear width and the height of the opening, with the door open.
- Say whether the door stays on its hinges or is lifted off. If it stays, enter its thickness.
- Enter the spare room you want to keep around the piece, or 0 for the bare minimum.
- Add the hallway width past the door if the piece must turn a corner, then press Check the fit.
Examples
- 84 x 36 x 34 in sofa, 36 in door off its hinges, 1 in spare: The open space is 35 by 79 in. The sofa cannot go upright (36 in deep), but turned onto its back with the length pointing forward it needs 34 in of width and 36 in of height, so it fits with 1 in to spare.
- A 48 x 6 in end-on shape in a 40 x 40 in opening: Straight, neither side fits. Rolled between about 41.4 and 48.6 degrees it needs 6 x cos + 48 x sin of width, which is 38.2 in at 45 degrees, so it clears the 40 in opening by about 1.8 in.
Understanding the result
The tool treats the piece as a rigid box and pushes it straight through the doorway with one of its three edges pointing forward. Seen from the front, the piece is a rectangle made of the other two measurements. If that rectangle is rolled sideways by an angle, it needs a width of sideways x cos + up x sin and a height of up x cos + sideways x sin. The tool tries every roll from 0 to 90 degrees in steps of 0.01 degree for all three directions of travel and keeps the one with the most room. 'Fits straight' means upright with no roll. 'Fits if turned' means it must go on its back or on its end. 'Fits if tilted' means only a diagonal roll works, and the range of working angles is shown. The longest side of the front-view rectangle can never exceed the opening's diagonal, which is the square root of width squared plus height squared. For the optional hallway turn, a piece F long and Q across turns a right-angle corner between a passage of width a and a hallway of width b only if F is at most (a x sin t + b x cos t - Q) / (sin t x cos t) at every angle t between 0 and 90 degrees.
Assumptions this tool makes
- The piece is a rigid box measured at its largest points. Soft furniture can squash, so the real clearance may be a bit better.
- A door left on its hinges and opened to 90 degrees takes its thickness off the opening width. Hinge knuckles may take slightly more, so add a little to the thickness if unsure.
- The straight push with a sideways roll is exact geometry for any wall thickness. No empirical factors are used.
- The hallway test treats the doorway as a passage as long as the piece, which is cautious for a door in a thin wall.
Limitations
- Geometry only. It cannot see steps, low ceilings, light fittings, banisters, door handles, tight corners beyond one right-angle turn, or the strength of the piece. Moving at your own risk.
- It does not model removable legs, arms and backs, squashing cushions or sofa frames that flex. Taking legs off may help; enter the size without them if you will.
- A piece is only pushed straight and rolled. Pivoting it in three dimensions through a thin wall can sometimes clear a few percent more, so a tight result can be worth a trial with the real piece. A pass here with only a small gap should be checked with a tape.
- Stairs, spiral stairs and lifts are not covered. The hallway test is one right-angle turn between two straight passages of constant width.
- Measurements you enter are used as given. Check the opening at its narrowest point, including door stops, hinges, handles and trim.
FAQ
How do I know if a couch will fit through a door?
Compare its three measurements with the doorway. If one measurement is smaller than the door width and the other two are smaller than the door height, it goes straight through. If not, this tool tests turning it onto its back or end and rolling it on the diagonal.
Does taking the door off help?
Yes. An open door still sits in the opening and takes about its thickness off the width. Lifting it off its hinges gives that back. Choose 'Door lifted off its hinges' to see the difference.
How is the tilt angle worked out?
Seen from the front, the piece is a rectangle. Rolled by an angle, it needs sideways x cos(angle) + up x sin(angle) of width and up x cos(angle) + sideways x sin(angle) of height. The tool checks every angle and shows the range where both are within the opening.
Why does it say it does not fit when real furniture often goes through?
This tool is cautious. It does not count squashing cushions, removable legs or arms, or three-dimensional pivoting, all of which can help. Treat 'does not fit' as a warning to check with a tape and a spare pair of hands, not as a final answer.
What does the spare room setting do?
It is taken off both the width and the height, so a pass leaves a gap for your fingers and the paintwork. Set it to 0 to see whether the piece fits at all.
Does the hallway check cover stairs?
No. It covers one right-angle turn between two straight passages. Stairs, landings and lifts are not modelled.
Is my information saved anywhere?
No. Everything is calculated in your browser and nothing is sent to a server. The share link keeps your numbers after the # sign.
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