Will My Sofa Fit Through the Door Calculator
Enter your sofa’s width, depth, and height — and its diagonal depth if you have it — with the doorway’s clear opening, to see whether it goes through upright, on its back, on end, or tipped back, and how much room is left.
Will My Sofa Fit Through the Door Calculator calculates in your browser.
Check a sofa against your doorway before it arrives
A sofa that looks too big for a doorway often isn’t, and one that looks fine sometimes is. What decides it is the door’s clear opening against the sofa’s depth and height — and, when both of those are wider than the door, the sofa’s diagonal depth, which is how thin its L-shaped side profile is when it is tipped back. This calculator checks the sofa as a box in every carrying position and, if you give it the diagonal depth, tipped back and carried arm first. It is for anyone buying a sofa online, planning a move, or arguing with a delivery team, and it tells you when the measurements you have can’t settle the question. For dressers, desks, and other boxy furniture, use the Furniture Through Doorway Fit Calculator.
How to use the Will My Sofa Fit Through the Door Calculator
- Choose your unit. Switching it later converts what you have typed.
- Measure the sofa: width arm to arm, depth front to back, and height from the floor to the top of the back.
- If the depth and height are both wider than the door, measure the diagonal depth: a straightedge from the top of the back to the front of the arm, then from the bottom back corner to the straightedge.
- Measure the doorway with the door open: from the face of the open door to the stop opposite, and from the floor or threshold to the top stop.
- Say whether the sofa comes straight at the door or turns in from a hallway, then read the result, the tightest point, and every position checked.
How the check works
Box check: across ≤ door clear width and height ≤ door clear height, for each carrying position
Tipped back: diagonal depth ≤ door width and √(depth² + height²) ≤ door height
Thinnest possible profile without a diagonal depth = depth × height ÷ √(depth² + height²)
The same 84 × 38 × 34 in sofa gives three different answers. As a box it is too deep and too tall for a 32 in door either way up, so without its diagonal depth the honest answer is to measure again. With a 29 in diagonal depth it goes through tipped back with 3 in to spare; with a 30 in diagonal depth it is 2 in too wide for a 28 in door.
| Sofa (W × D × H) | Diagonal depth | Doorway | Result | Tightest point |
|---|---|---|---|---|
| 84 × 30 × 34 in | — | 32 × 80 in | Likely fits | Door width: 2 in to spare |
| 84 × 38 × 34 in | Not measured | 32 × 80 in | Additional measurements required | Door width: 2 in too big |
| 84 × 38 × 34 in | 29 in | 32 × 80 in | Likely fits | Door width: 3 in to spare |
| 84 × 38 × 34 in | 30 in | 28 × 80 in | Does not fit under the conditions checked | Door width: 2 in too big |
Calculated on your device
- The check runs in your browser as you type; nothing is sent to a server.
- Your measurements and results are not sent to Looty Tools or stored.
- The calculator area, including the diagram, is masked from session-recording analytics, so what you enter isn’t captured in recordings.
Limitations
- The sofa is checked as a rigid box, plus the tipped-back carry when you give its diagonal depth; cushions, springs, and fabric are not counted as giving.
- Standing a sofa on end and “hooking” it round the door frame is a 3D manoeuvre this calculator doesn’t model. A no here means no straight carry works.
- A straight approach assumes room in line with the door on both sides at least as long as the sofa. Turning in from a hallway uses a corridor model that is roomier than nothing but tighter than a real room, so a failed turn asks for more measurements.
- Legs come off only if you enter their height; removing backs, arms, or the door itself changes the measurements, so re-enter them.
- Sizes up to 100 ft (30.48 m) in inches, feet, centimeters, or meters.
Related calculators
- Furniture Through Doorway Fit CalculatorCheck whether a piece of furniture can pass through a doorway.
- Hallway Corner Turn CalculatorEstimate whether furniture can make a turn through a hallway.
- Stairwell Furniture Clearance CalculatorCheck whether furniture clears a stairwell.
- Length ConverterConvert inches, feet, meters, and other lengths.
Guides
- Sofa Diagonal DepthWhat a sofa’s diagonal depth is, how to measure it with a straightedge in a few minutes, how to check the number makes sense, and how to read it against a doorway’s width.
- When a Sofa Won’t FitThe fixes to try, in order, when a sofa is stuck at a doorway: find which measurement is short, take off legs or the door, change the route, and know when to stop.
- Sofa Delivery ChecklistWalk the route from the curb to the room before ordering a sofa: what to measure at each door, corner, and staircase, and what each measurement decides.
- Standing Furniture on EndWhy standing a sofa on end gets it round a corner it can’t turn level, when lifting one end helps and when it makes things worse, and how much ceiling it takes.
Will My Sofa Fit Through the Door Calculator FAQ
- How do I know if my sofa will fit through the door?
- Compare the door’s clear width with the sofa’s depth and height. If either is smaller than the door, the sofa can usually go through arm first: a sofa 30 in deep fits a 32 in door with 2 in to spare. If both are bigger, measure its diagonal depth — that is what decides whether tipping it back will work.
- What is a sofa’s diagonal depth and how do I measure it?
- Lay a straightedge from the top of the back to the front of the arm, then measure from the bottom back corner of the sofa straight to the straightedge. That is how thin the sofa’s side outline is when tipped back. A sofa 38 in deep and 34 in high won’t clear a 32 in door as a box, but with a 29 in diagonal depth it goes through tipped back with 3 in to spare.
- Why does the calculator ask for more measurements instead of saying no?
- Because a sofa isn’t a solid box. Without a diagonal depth, the calculator only says no when even the thinnest outline a sofa of that depth and height could have is wider than the door — for 38 × 34 in that is about 25.3 in. Otherwise it asks for the diagonal depth rather than guessing.
- Does taking the legs off help a sofa fit?
- Often. Enter the leg height only if you will unscrew them; it comes off the sofa’s height. A sofa 33 in deep and 34 in high doesn’t clear a 32 in door, but with 3 in legs removed it is 31 in high and goes through on its back.
- What if the sofa has to turn into the door from a hallway?
- Choose the hallway approach and enter its width and ceiling height. The turn is checked with a corridor model that is never roomier than a real doorway into a room, so a pass is reliable; if it can’t be shown, the result asks for more measurements rather than saying no.
- Are the measurements I enter sent anywhere?
- No. The check runs in your browser as you type. Your measurements and results are not sent to Looty Tools or stored, and the calculator area is masked from session-recording analytics. Refreshing the page clears it.
