Enter your couch dimensions and hallway corner measurements — the app calculates whether you can pivot around the turn.
Whether it fits depends on measurements most people get wrong.
Couch length and depth vs. corridor widths at the turn
Item: Standard 3-seat couch: 84" L × 35" W × 33" H
Space: Standard hallway corner: 42–48" wide on each side. Building code minimum: 36" per corridor
Actual clear openings are usually 1–2″ smaller than the labeled size.
Your exact dimensions probably aren't "standard." Small measurement errors cause big problems — 1 inch can be the difference between fitting and getting stuck.
Verdicts are calculated by comparing all 6 item orientations against the space dimensions using verified building code standards. See our methodology
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“Saved me from a $200 return — the couch was 2 inches too wide for the doorway.” — Online shopper
Measure smart
Four numbers decide nearly every fit check. Get these right and the rest follows.
Don't make these
Most “it didn't fit” stories trace back to one of these oversights.
Frequently asked
For a standard 84-inch couch, you typically need at least 42 inches in both corridors for a flat pivot. If one corridor is narrower, tilt the couch vertically to reduce the footprint. The wider the corridors, the easier the turn.
01The moving sofa problem is a famous math puzzle about finding the largest shape that can navigate an L-shaped hallway corner. In practice, the answer depends on your specific couch dimensions and hallway widths. Our calculator handles the real-world version of this problem.
02Yes — standing a couch on end dramatically reduces the floor space needed for the turn. A couch that is 84" long and 35" wide only occupies a 35" × 33" footprint when stood upright. You need ceiling clearance for the 84" length, but the corner pivot becomes much easier.
03Rounded or chamfered corners are easier to navigate than sharp 90° angles. The curved wall acts as a guide rail for the couch. Measure the radius of the curve and the corridor widths on both sides.
04More like this
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