Moving a couch into a new space can be tricky—especially when you’re unsure if it’ll fit through the doorway. The Couch Through Door Calculator takes the guesswork out of the equation. By entering the dimensions of your couch and your door, the calculator will tell you if the couch fits, and if so, the best method to move it in: straight, tilted, or rotated.
How the Couch Fit is Calculated
1. Straight Fit Check
To see if the couch can pass through the door in a normal position:
Couch Width≤Door WidthANDCouch Height≤Door Height
2. Tilted Fit Check (Using Diagonal)
If a straight fit doesn’t work, the couch may fit diagonally. We calculate the couch’s diagonal height:
Diagonal Height=(Couch Height)2+(Couch Depth)2
Then we check:
Diagonal Height≤Door Height
3. Rotated Fit Check
If none of the above methods work, rotating the couch at an angle may allow it to pass. This involves testing:
Couch Width≤Door HeightANDCouch Depth≤Door Width
Example Calculation
Let’s say you have the following:
- Couch Width = 35 inches
- Couch Height = 30 inches
- Couch Depth = 36 inches
- Door Width = 32 inches
- Door Height = 80 inches
➤ Step 1: Straight Fit?
35≤32(False),30≤80(True)
Result: ❌ Straight Fit Not Possible
➤ Step 2: Tilted Fit?
302+362=900+1296=2196≈46.86
46.86≤80(True)
✅ Tilted Fit is Possible
🎯 Final Result:
The couch can fit through the door if tilted.
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